Spouse: Olive Curtis Munger (Married)
Children: Ellen Rosalie Armstrong, Amos Parmalee Armstrong, Harriet Elizabeth Armstrong, Betsey Olive Armstrong, Sarah Anna Armstrong, Elvira Munger Armstrong, Lillie Cecilia Armstrong
Sylvester's Heritage
Parents: Sylvester Armstrong, Elizabeth Danforth
Siblings: Harriet Armstrong, Elkanah Danforth Armstrong, Alden Armstrong, Henry Armstrong