lookup 1880-1890 census

[irret]

I am searching for a Mary Walker born Scotland 1872 or there abouts she emigrated in 1874 arriving at New York with John b 1848, James b 1851, and Margaret Walker  b 1849 they may not all be together in 1880 -1890 ,Mary would be about eight years old there about. I know in 1924 she was in New Jersey but would really appreciate some help thank you.

[Genealiza]

What is the relationship of these people?

 A look at www.familysearch.org, the 1880 census,  lists a John G Walker (32), wife, Margret (31)and 4 children: John (, Margret (6), Jennie (4), and Agnes (2).  Also listed in the household is Arthur Boyd (20), a nephew.

[Genealiza]

Ooops, that's John (

[Genealiza]

for some reason, my eight is not printing correctly