Gustave Grupe to Marie Grupe, August 4, 1919

Letter from Gustave Grupe to his aunt, Marie Grupe, August 4, 1919.

Gustave Grupe to Marie Grupe, April 18, 1916

Letter from Gustave Grupe to his aunt, Marie Grupe, April 18, 1916.

Gustave Grupe to Marie Grupe, March 26, 1916

Postcard from Gustave Grupe to his aunt, Marie Grupe, March 26, 1916.

Gustave Grupe to Marie Grupe, December 4, 1914

Letter from Gustave Grupe to his aunt, Marie Grupe, December 4, 1914.

Gustave Grupe to Marie Grupe, December 15, 1913

Letter from Gustave Grupe to his aunt, Marie Grupe, December 15, 1913.

Gustave Grupe to Marie Grupe, September 3, 1913

Letter from Gustave Grupe to his aunt, Marie Grupe, September 3, 1913.

Gustave Grupe to Marie Grupe, February 20, 1913

Letter from Gustave Grupe to his aunt, Marie Grupe, February 20, 1913.

Gustave Grupe to Marie Grupe, May 5, 1912

Letter from Gustave Grupe to his aunt, Marie Grupe, May 5, 1912.

Gustave Grupe to Marie Grupe, December 31, 1911

Letter from Gustave Grupe to his aunt, Marie Grupe, December 31, 1911.

Gustave Grupe to Marie Grupe, May 22, 1911

Letter from Gustave Grupe to his aunt, Marie Grupe, May 22, 1911.

Gustave Grupe to Marie Grupe, April 18, 1911

Letter from Gustave Grupe to his aunt, Marie Grupe, April 18, 1911.

Gustave Grupe to Marie Grupe, December 20, 1909

Letter from Gustave Grupe to his aunt, Marie Grupe, December 20, 1909.

Gustave Grupe to Marie Grupe, January 2, 1909

Letter from Gustave Grupe to his aunt, Marie Grupe, January 2, 1909.

Gustave Grupe to Marie Grupe, July 7, 1908

Letter from Gustave Grupe to his aunt, Marie Grupe, July 7, 1908.

Gustave Grupe to Marie Grupe, December 15, 1907

Letter from Gustave Grupe to his aunt, Marie Grupe, December 15, 1907.

Gustave Grupe to Marie Grupe, May 12, 1907

Letter from Gustave Grupe to his aunt, Marie Grupe, May 12, 1907.

Gustave Grupe to Marie Grupe, July 8, 1906

Letter from Gustave Grupe to his aunt, Marie Grupe, July 8, 1906.

Gustave Grupe to Marie Grupe, November 16, 1904

Letter from Gustave Grupe to his aunt, Marie Grupe, November 16, 1904.

Gustave Grupe to Marie Grupe, December 18, 1901

Letter from Gustave Grupe to his aunt, Marie Grupe, December 18, 1901.

Gustave Grupe to Amalie Grupe, September 16, 1898

Letter from Gustave Grupe to Amalie Grupe, September 16, 1898.