This is all I could find on line
1860 Boston Ward 12, Suffolk, Massachusetts
Dugan, Thos Age: 27 head-of-household: England Boiler Maker
Amelia Age: 29: female, born Ireland 1830
Amelia Age: 2 : Daughter Mass
Adelaide Age: 3/12: Daughter Mass
Walsh, Thom , Head House, age 30 , born Ireland Labor
Mary, female, age 27, born Ireland
1860 Sacramento Ward 4, Sacramento, California
Dugan, Thos Age: 37 Head House England (index as Yergan)
Amelia Age: 38: female, born Ireland 1830
" ' " Age: 12, female, Mass
Adelaide Age: 20: female Mass
Sophia, age 8, born
Laura A, female, age 5, born MA
Frank, male, age 3, born MA
1880; Sacramento, Sacramento, California; Roll: T9_71; Family History Film: 1254071; Page: 124C; Enumeration District: 83; Image: 0250.
Thomas DUGGON Age: 47 Estimated birth year: <1833> Birthplace: ENG Occupation: Boiler Maker Relationship to head-of-household: Self
Amelia Age: 22 , daughter, Estimated birth year: <1858> Birthplace: Massachusetts Occupation: School Teacher
Adelaide Age: 20 , daughter, Estimated birth year: <1860> Birthplace: Massachusetts Occupation: School Teacher
Frank Age: 13 , son, Estimated birth year: <1867> Birthplace: Massachusetts
Laura D Age: 15 , daughter, Estimated birth year: <1865> Birthplace: Massachusetts
Sophia, daughter, Age: 18 Estimated birth year: <1862> Birthplace: Massachusetts
He is a Widow.
1900 San Francisco, San Francisco, California
Christie , James W, Head House, age 37, born April 1865 Scotland
Maura,(Laura) wife, age 34, born June 1866 MA-Eng-Eng
Duggan, Thomas, father in law, age 67, born Oct 1832 ENG
Thomas came to states in 1851, Been here 49 years and is a Nat Cit.
James came to states in 1890, Been here 10 years (1890) and is a Natutal Cit. Married 0 years and no children.
1910 San Francisco, San Francisco, California ED 102
Christie , James W, Head House, age 47, born Scotland
Laura E, wife, age 40, born MA-Eng-IRE
Married 10 years, Laura has no children.
1920 San Francisco, San Francisco, California ED
Christie , James W, Head House, age 66, born Ireland
Laura E, wife, age 45, born MA-Eng-IRE
James, son, age 19, born England
Emelie, daughter, age 17, born Ireland
James came over in 1890, James and Emile in 1900. At a guess I would say that he had children before he married Laura. Bet she was surprised ! Our they adopted them as they are both born in different place.
1930 San Francisco, San Francisco, CA
Christie , J W, Head House, age 66, born Scotland
Laura E, wife, age 65, born MA-Eng-IRE