Items
recipient is exactly
Hayes, Helen Augusta
-
[E1565RG1], Letter from West Orange Laboratory to Helen Augusta Hayes, December 29th, 1915
1915-12-29 -
[F5F06AO], Letter from Mina Miller (Mrs Thomas A.) Edison to Helen Augusta Hayes, November 13th, 1916
1916-11-13 -
[LB097066], Letter from Thomas Alva Edison to Helen Augusta Hayes, February 20th, 1914
1914-02-20