I am interested in any information on the following persons:

1920 Allegheny PA Census, ED.619 p.29B, #553-681:
Alice J. CLARK 64wf, widow, owns home free of mortgage, b.PA, parents b. PA; daughter, Sadie I. CLARK 38wf, single, teacher, b.PA, parents b.PA; daughter, Mildred C.CLARK 19wf, single, b.PA, no occupation; mother, Sarah COULTER 84wf, widow, b.PA, parents b.PA; granddaughter, Margaret ARHEIT 7wf, b.OH, father b.OH, mother b.PA.

Thanks! Betty

Because Sarah is listed as the "mother" of Alice CLARK (the head of household), I would think that COULTER is her married name. The granddaughter, Margaret, ties into my family through her father. Margaret's mother was Cora ?(UNKNOWN), but possibly CLARK from this census info. I would like to clarify the family relationships and find out what happened to these people.
Betty