I've requested a search for the marriage record of Henry N Hamilton and Anna ___ in Allegheny Co, Pennsylvania.
They responded pretty fast:
"The Allegheny County Department of Court Records has not found any marriage records related to your request."
I don't think I will try any other counties. They could have gone anywhere to marry.
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I'm now trying to rule in or out the following family as being Anna __'s birth family:
Edited: this is not her. See next post.
1900 Census, McKeesport, Allegheny County, Pennsylvania
June 13, 1900
renting at 37 Penn Street
Andy Morris, October 1859, 41, born in Austria, laborer, mill, arrived 1891
Barbara Morris, Dec 1863, 37, born in Austria, married 15 years, 4 or 6 children, 4 alive, arrived 1892
Annie Morris, June 1886, 14, born in Austria, arrived 1892, in school
Mary Morris, October 1892, 8, born in Pennsylvania
Michael Morris, October 1894, 6, born in Pennsylvania
Susie Morris, June 1895, 5, born in Pennsylvania
https://familysearch.org/ark:/61903/1:1:M3MW-FK5--
The month, year, and place for this Annie's birth match what I know about Henry Hamilton's wife.
Also, a cousin sent me a picture of Henry and Anna with a young man. The information that came with the picture said his name was Morris. I took it to be his given name, but who knows ...
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The father, Andrew, is not the Andrew Morros (b abt 1864, Austria) who died 1 Feb 1908 in Dixmont (PA) Insane Asylum. That man was from Manifold, Washington County, according to his death record.