William is also a stone mason - perhaps how they met.
living next door to her father and mother (Royal and Clarissa) 1880 Stockton, NY
Home in 1892: Jamestown, Chautauqua, NY (next door to brother Walter)
Home in 1900: North Braddock, Allegheny, Pennsylvania (Cora still at home)
Home in 1910: McKeesport Ward 5, Allegheny, Pennsylvania (William and Augusta in daughter Ella's hh)
William w/ GC Murphy in 1920, Augusta missing
Very confusing! Clara M and Cora M living together "twins" in 1900 Vernon, Oneida Co, NY both as Roberts! daughters of Jane & Louis:
Louis Roberts 63
Jane Roberts 52
John W Roberts 24
Cora Roberts 23
Clara Roberts 23
Robert Roberts 21
twins? father from Wales? born in NY. No other matches in the census. Except birthday is 1 yr off and Cora M was also living with parents in Allegheny Co, NY