full name, Mary Rebecca (or Rebecca Mary), widow in 1900 census

1880 Sault Sainte Marie, Chippewa, Michigan
Knox, Jno/44:ME:ME:ME/farmer, Mary/wife/28:Can:Ire:Ire,
(), Herbert/son/7:MI:--:Can, Olive A/dau/4:MI:--:Can,
(), George B/son/3:MI:--:Can, James D/son/1:MI:--:Can, N E/son/14:MI:--:Can
Barnes, Alice/16:Can/servant, Jno/24:Can/servant

1900 Sault Sainte Marie, Chippewa, Michigan
Knox, Rebecca M, head 48 widow born apr1852 Can:Ire:Ire
- immigration:1872, farmer, 11 children 3 living,
(), George B, son 23 single born jan1877 MI:Can:Can laborer
(), Anna, dau 16 single born feb1884 MI:Can:Can at school

1910 Soo, Chippewa, Michigan
Knox, Mary R, head 57:Can:Ire:Ire widow
Rowat, Anny K/dau/26:MI:ME:Can, married.1 3 yrs, 3:3 children (3 living),
(), Thelma M/2:MI:Can:MI, Mildred/1+5m:MI:Can:MI, Margret/5m:MI:Can:MI