Is this the family in 1880 ? Coleman Street, Allegheny, Allegheny, Pennsylvania. ??
James Johnson 55 Self (Head)
Jane Johnson44 Wife
Elisabeth Johnson 23 Daughter
George Johnson 19 Son
Hanna Johnson 15 Daughter
Maggie Johnson 12 Daughter
Samuel Johnson 10 Son
John Johnson 7 Son
https://www.findagrave.com/memorial/124355898/james-johnston1870 census Allegheny Ward 1, Allegheny, Pennsylvania
James Johnson 48
Jane Johnson 36
Elizabeth Johnson 13
George Johnson 9
Nannie Johnson 5
Maggie Johnson 2
1860 census Allegheny Ward 1, Alleghany, Pennsylvania.
James Johnston 28
Jane Johnston 25
Elizabeth Johnston
Jane Johnston 1
Nancy Hutchinson 46
Thomas Caskill 43
Ann Caskill 36
Are Nancy Hutchinson, or Thomas and Ann Caskill related ?
Nothing in the naming pattern to help with clues - no Matthew. First son seems to be George.
Although they are lodging with Matthew McWhinney in 1850
Allegheny Ward 1, Allegheny, Pennsylvania.
Mathew McWhinney 35
Sarah McWhinney 30
Thomas I McWhinney 7
Sarah I McWhinney 5
Eliza A McWhinney 3
Henrietta McWhinney 1
Thomas Hair 22
John Hair 20
Samuel Hare 19
James Johnston 23
Jane Johnston20
Added - Sarah McWhinney was maiden surname Anderson. No Johnston connection with Sarah
The Pittsburgh Post
Pittsburgh, Pennsylvania
Sat, 23 Jun 1906
Page 5
https://www.newspapers.com/article/the-pittsburgh-post/147496084/