John was born in 1876. He is the son of Patrick Clay and Mary O'Neill.
He emigrated to Scotland, marrying Sarah McLaughlin in 1896.
After her passing, he emigrated to the US, marrying Elizabeth Shanley (nee Dougherty) in 1920.
He passed away in 1960.
Birth: Irish Genealogy
Parish: Greenock West; ED: 26; Page: 26; Line: 8; Roll: CSSCT1901_197; 1901 Scotland Census; Publisher: Ancestry.com Operations Inc; Publisher date: 2007; Publisher location: Provo, UT, USA
"United States, Veterans Administration Master Index, 1917-1940," database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:QPCZ-ZRPP : 3 September 2021), John Clay, 15 Feb 1919; citing Military Service, NARA microfilm publication 76193916 (St. Louis: National Archives and Records Administration, 1985), various roll numbers.
"United States Census, 1920", database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MXM5-CDQ : 3 February 2021), John Clay, 1920.
"Pennsylvania, County Marriages, 1885-1950," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:Q2Z4-75S3 : 22 July 2021), John Clay and Elizabeth Shanley, 11 Oct 1920; citing Marriage, Pennsylvania, United States, multiple County Clerks, Pennsylvania.
Pennsylvania, Death Certificates, 1906-1963; Author: Ancestry.com; Publisher: Ancestry.com Operations, Inc.; Publisher date: 2014; Publisher location: Provo, UT, USA