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William McMahon O'Brien

Male 1840 - 1877  (37 years)


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  • Name William McMahon O'Brien 
    Birth 1840  Clare Co, Ireland Find all individuals with events at this location 
    Gender Male 
    Census 14 Jul 1870  San Francisco, San Francisco, CA Find all individuals with events at this location 
    age 29, born IRE, Bank Clerk, living with family in house of Thomas O'Brien, 27 (brother?) 
    Death 1 Dec 1877  San Francisco, San Francisco, CA Find all individuals with events at this location 
    Person ID I20275  Family Tree
    Last Modified 2 Feb 2020 

    Family Elizabeth Landers,   b. 1848, Ireland Find all individuals with events at this location 
    Children 
    +1. John W O'Brien,   b. 30 May 1871, San Francisco, San Francisco, CA Find all individuals with events at this locationd. 11 Aug 1963, San Mateo Co, CA Find all individuals with events at this location (Age 92 years)
    +2. William David O'Brien,   b. 28 Nov 1872, San Francisco, San Francisco, CA Find all individuals with events at this locationd. 22 May 1944, San Francisco, San Francisco, CA Find all individuals with events at this location (Age 71 years)
    +3. Elizabeth Mary O'Brien,   b. 30 Apr 1874, San Francisco, San Francisco, CA Find all individuals with events at this locationd. 26 Jun 1959, San Francisco, San Francisco, CA Find all individuals with events at this location (Age 85 years)
    Family ID F7959  Group Sheet  |  Family Chart
    Last Modified 2 Feb 2020 

  • Notes 
    • from "Irish Families on the California Trail: Pioneers and 49ers fromm the Earliest Days Including the Gold Rush & San Francisco", by Michael C. O'Laughlin, 2003
      Mr. McMahon O'Brien served the Stars and Strips during the war and then came to California. He was connected with the Hibernia Savings Bank and the Dime Savings Bank on Market Street. The Dime Savings Bank was a smaller bank, un the direction of "W. McMahon O'Brien, Esq." This bank withstood some hard times, when other bank failed. In 1878 it was said that the late Mr. McMahon O'Brien was "and his surviving brothers are of the same family as the Marquis of Thomand, Lord Inchiquin" in Ireland. It was said that the title and lands rightfully belonged to this branch of the family, but all was lost in the 16th century confiscation's. Mr. O'Briens grandfather was John O'Brien who still retains some estates in County Clare, Ireland. Mr O'Briens father came to the U.S. while his children were still young, but he did not survive long.
    • from "The San Francisco Chronicle", 4 Dec 1877 (genealogybank.com)
      OBRIEN - In this city, December 1, William McM. O'Brien, aged 37 years. Friends are respecfully invited to attend the funeral this day (Tuesday), at 10 o'clock A.M. from his late residence, 120 Page street.