Baltimore Horse Show, unidentified men and women sitting outside, undated [circa 1900-1910].

Baltimore Horse Show, unidentified men and women sitting outside, undated [circa 1900-1910].

Baltimore Horse Show, unidentified men and women sitting outside, undated [circa 1900-1910].

Baltimore Horse Show, unidentified men and women sitting outside, undated [circa 1900-1910].

Adele Ritchie, undated [circa 1900-1910].

Julia Marlowe, undated [circa 1900-1910].

Julia Marlowe, undated [circa 1900-1910].

Ethel Barrymore, undated [circa 1900-1910].

Ethel Barrymore, undated [circa 1900-1910].

Ethel Barrymore and group of actors, undated [circa 1900-1910].

Ethel Barrymore, undated [circa 1900-1910].

Julia Bache, undated [circa 1900-1910].

Unidentified woman, undated [circa 1900-1910].

Unidentified woman, undated [circa 1900-1910].

Unidentified woman, undated [circa 1900-1910].

Unidentified woman, undated [circa 1900-1910].

Unidentified woman, undated [circa 1900-1910].

Unidentified woman, undated [circa 1900-1910].

Unidentified woman, undated [circa 1900-1910].

Unidentified woman, undated [circa 1900-1910].

Unidentified woman, undated [circa 1900-1910].

Unidentified woman, undated [circa 1900-1910].

Unidentified woman, undated [circa 1900-1910].

Unidentified woman, undated [circa 1900-1910].