Common Exhibitions of Harry Mills Walcott and William Langson Lathrop
Nov 2, 1905‒Jan 1, 1906
Tenth Annual Exhibition
Pittsburgh
:
Carnegie Institute
Apr 27‒Jun 30, 1911
Fifteenth Annual Exhibition
Pittsburgh
:
Carnegie Institute
Apr 25‒Jun 30, 1912
Sixteenth Annual Exhibition
Pittsburgh
:
Carnegie Institute
Apr 24‒Jun 30, 1913
Seventeenth Annual Exhibition
Pittsburgh
:
Carnegie Institute
Apr 30‒Jun 30, 1914
Eighteenth Annual Exhibition
Pittsburgh
:
Carnegie Institute