Correspondence Dr. Albert Leffingwell, June 15, 1903

Correspondence on American Humane Association funds and membership, circa 1895-1905

Correspondence on new society to take place of the American Humane Association, circa 1895-1905

Correspondence to Dr. Albert Leffingwell, 1902

Correspondence to Dr. Albert Leffingwell, April 1, 1897

Correspondence to Dr. Albert Leffingwell, April 16, 1904

Correspondence to Dr. Albert Leffingwell, April 21, 1902

Correspondence to Dr. Albert Leffingwell, April 4, 1904

Correspondence to Dr. Albert Leffingwell, August 10, 1903

Correspondence to Dr. Albert Leffingwell, August 15, 1903

Correspondence to Dr. Albert Leffingwell, August 25, 1903

Correspondence to Dr. Albert Leffingwell, August 8, 1903

Correspondence to Dr. Albert Leffingwell, circa 1895-1905

Correspondence to Dr. Albert Leffingwell, circa 1895-1905

Correspondence to Dr. Albert Leffingwell, circa 1896-1897

Correspondence to Dr. Albert Leffingwell, circa January 1905

Correspondence to Dr. Albert Leffingwell, December 10, 1904

Correspondence to Dr. Albert Leffingwell, December 12, 1904

Correspondence to Dr. Albert Leffingwell, December 18, 1899

Correspondence to Dr. Albert Leffingwell, December 20, 1904