Erin Faith Allen is a leading authority on the history of the 42nd "Rainbow" Division, and the Liberation of Dachau

42nd "Rainbow" Infantry Division patch from WWII

"Erin Faith Allen's work in support of the Rainbow Division Veterans Foundation and the preservation of 42nd Infantry Division history has been truly wonderful and inspiring. Her untiring drive to uncover the details surrounding the units, the battles fought, and the brave men who bore the heavy burden of securing freedom for generations to come is remarkable. We are grateful for all she does and for choosing the Rainbow Division as a highlight of her incredible work."

— Brigadier General (Ret.) Gary S. Yaple, Chairman, Rainbow Division Veterans Foundation, 2023–2025

A Journey With the 42nd “Rainbow” Infantry Division:

Standing at the gates of Dachau in 2015, I unknowingly began what would become a decade of intensive research into the 42nd "Rainbow" Division, the American soldiers who liberated this site on April 29, 1945.

That moment has since grown into an archive of documents, photographs, letters, oral histories, and materials contributed by veterans, their families, fellow historians, and official repositories across two continents. It is a living collection that continues to grow.

By 2017, I had interviewed my first Rainbow Division veterans. Among them was Lockered "Bud" Gahs. A friendship that became the beating heart of my work, his firsthand accounts anchoring this project in something no archive can provide: the voice of a man who was actually there.

Over the years, the relationship produced countless hours of interviews, two trips back to Europe together: to Alsace, where Bud stood at the exact house in Schweighouse-sur-Moder where he had held his position alone for hours during Operation Nordwind; to Épinal American Cemetery, where he stood at the graves of his fallen comrades for the first time since the war; and to the Dachau Memorial.

In August 2022, Bud received the Legion of Honor from the French government on the ground where he had fought 77 years earlier.

On April 29, 2023, exactly 78 years after the liberation, Bud sat across from 45th Division veteran Dan Dougherty at Dachau and they told each other, for the first time, what they had seen that day. That conversation, captured on film, became one of the most significant documented moments we shared together.

To truly understand their experiences, my research has taken me back and forth across Europe, walking the same ground these soldiers traversed, from the frozen forests of Alsace where they faced their baptism of fire in Operation Nordwind, to the ruins of Würzburg where they fought house-to-house, to the solemn grounds of Dachau. Each site visit deepens my understanding in ways archive work alone cannot provide. Through photography, film, and careful documentation, including relationships with locals who carry their own piece of this legacy, I preserve the physical context of stories that would otherwise exist only on scattered paper.

My research centers on the individual soldiers who wore the Rainbow patch: their hopes, fears, and the bonds that sustained them through one of history's darkest chapters.

“Let no boy’s soul say:

Had I the proper training … “

Major General Harry J. Collins

The Rainbow Division Legend Reborn in World War II

The 42nd Infantry Division was born in 1917 from an act of imagination. Then-Major Douglas MacArthur proposed drawing National Guard units from 26 states and the District of Columbia into a single division, one that, he famously said, would “stretch across the country like a rainbow”. The name stuck. The division shipped to France and spent 164 days in combat, third behind only the 1st and 26th Infantry Divisions for time on the line.

They came home a legend … then the world went to war again.

On July 14, 1943, the Rainbow was reactivated at Camp Gruber, Oklahoma, this time composed largely of draftees rather than guardsmen, but carrying the same name, the same patch, and a tradition that placed something extra on their shoulders before they had fired a single shot. Major General Harry J. Collins took command and told his men plainly: the Rainbow represents the people of our country. This division cannot fail because America cannot fail.

In November 1944, with the war in Europe at a crisis point, three of the division's infantry regiments were pulled out of training and rushed to France without their artillery, without their engineering support, without the infrastructure that makes a division whole. Task Force Linden, named for Brigadier General Henning Linden who commanded them, landed at Marseille on December 8, 1944, and moved north toward combat.

The Rainbow Division Order of Battle

222nd Infantry Regiment
232nd Infantry Regiment
242nd Infantry Regiment
Headquarters 42nd Division Artillery
232nd Field Artillery Battalion
392nd Field Artillery Battalion

402nd Field Artillery Battalion
542nd Field Artillery Battalion
142nd Engineer Combat Battalion
122nd Medical Battalion
42nd Reconnaissance Troop
132nd Signal Company

742nd Ordnance Light
42nd Quartermaster Company
42nd Military Police Platoon
Division Headquarters Company
42nd Division Band

Bodies were everywhere. Some of the wounded were calling pathetically for medics, while some tried to crawl their way into the multitude of black craters that spotted the light snow cover. Someone yelled … “Get your asses down!”

Norman Thompson, Company G, 242nd Infantry Regiment

Major General Harry J Collins of the 42nd "Rainbow" Infantry Division in WWII

Under the command of Major General “Hollywood” Harry J. Collins and Brigadier General Henning Linden, elements of the Rainbow Division prepare for European deployment as Task Force Linden while the war in Europe intensifies.

Timeline: Key Moments in Rainbow Division WWII

  • July 14 1943: 42nd Infantry Division reactivation at Camp Gruber, Oklahoma

  • November 25 1944: Task Force Linden (TFL) departure from New York Harbor

  • December 8 1944: Rainbow Division TFL arrives at Marseille, France

  • January 1945: Operation Nordwind, Hitler’s last offensive

  • March 1945: Operation Undertone, assault on the Siegfried line through the Hardt mountains

  • April 1945: Battle of Würzburg, capture of Schweinfurt, Furth, Nuremberg, Munich

  • April 29 1945: Liberation of Dachau Concentration Camp and capture of Munich

  • May 1945 through 1946: Occupation of Austria

Brigadier General Henning Linden of the 42nd "Rainbow" Infantry Division in WWII

The Rainbow Trail

From Alsace to Austria: The Rainbow Division's WWII Combat Path

They arrived in Alsace at Christmas and were in combat before the new year.

Operation Nordwind, Hitler's last major offensive in the West, launched on New Year's Eve 1944, driving German armor and elite infantry into Alsace. Task Force Linden, green soldiers filling the ranks, held a thirty-mile front against forces that had been fighting for years. In the villages of Hatten and Rittershoffen, the 242nd Infantry held against tanks and paratroopers.

By mid-February 1945, the rest of the division had arrived and the full Rainbow entered the line. What followed was five months of almost continuous forward movement, aggressive patrolling in the Hardt Mountains, a night assault through terrain that required pack mules for supply, a breach of the Siegfried Line that the Germans had believed impassable. On Easter Sunday, the 42nd crossed the Rhine.

The cities came quickly after that. Würzburg in four days of house-to-house fighting, the Germans tunneling back through cleared ground to force the Rainbow to take the same buildings twice. Schweinfurt. Fürth. Nuremberg, and finally Munich - the birthplace of the Nazi movement.

One day earlier, on April 29, the Rainbow reached Dachau.

“The GIs who liberated the camp looked like gods to us.”

Ben Lesser, survivor of Dachau

The Rainbow Division Liberation of Dachau Concentration Camp

What the soldiers found there is not easily written. More than 30,000 prisoners. Rail cars full of the dead, transported from other camps as the Reich collapsed, arriving with nowhere left to go. The living who no longer resembled the living. Men who had spent years inside this place looking out at soldiers who, to survivor Ben Lesser, looked like gods.

The Rainbow Division rabbi, Eli Bohnen, who entered the camp wrote to his wife that night: nothing you can put in words would adequately describe what I saw.

Dachau had opened in March 1933 a precursor for the terrorizing system that would eventually consume millions of lives. The men of the Rainbow were among the first Americans to stand inside it on the day of liberation. What they saw there clarified, for many of them, everything they had endured to arrive at that moment.

The division moved on to Munich the following day. By May 5, Rainbow patrols had crossed into Austria. When Germany surrendered on May 7, 1945, the 42nd was on occupation duty north of Salzburg.

They had covered 450 miles, had taken more than 45,000 prisoners and had been in combat for 106 days. 686 Rainbow men gave their lives in combat.

Max Lütgens, Joseph Alexander, Erin Faith Allen, Abba Naor, Lockered ‘Bud’ Gahs and Dr. Christoph Thonfeld at the 78th anniversary of the liberation of Dachau.

Max Lütgens (Dachau Education Department), Joseph Alexander (survivor), Erin Faith Allen, Abba Naor (survivor), Lockered ‘Bud’ Gahs (liberator) and Dr. Christoph Thonfeld (Director of Research, Dachau) at the 78th anniversary of the liberation of Dachau.

If you are a researcher, filmmaker, institution, or family with a serious project involving the 42nd Division, I want to hear from you.