From: The Oakland Tribune, 13 December 1910
Pioneer Woman Dies Suddenly at Home
Son Discovers Her Lifeless Body on Return From Work in Evening
Stricken with heart failure, Mrs. Mary A. Colby, one of the oldest pioneer women of East Oakland, died yesterday afternoon, alone, in her home at 1315 Twelfth avenue. She was found by her son, Eugene E. Colby, superintendant of the East Oakland branch postoffice when he returned from work last evening.
Mrs. Colby was 65 years of age and a native of Vermont. Her husband, the late H. Colby, was one of the early settlers in Oakland. Besides Eugene Colby, she is survived by another son, Arthur Colby, Wells, Fargo & Co. agent in East Oakland. No arrangements have been made for the funeral.