Henry O. Mckay 
Henry O. was born in 1838 in Indiana.1 Henry O.'s father was Unknown McKay. He was an only child. Henry O. is no longer alive.2 
Henry O. and Mary were married in a religious ceremony on January 2nd, 1859 in Clark, IL.3 They had a daughter named Adelia F..
1 1880 United States Federal Census
2 Sullivan County, Missouri Cemetery Records, Volumes 1-5
3 Illinois Marriages, 1851-1900
4 OneWorldTree
Further sources/citations:
1850 United States Federal Census, 1860 United States Federal Census, New York, 1820-1850 Passenger and Immigration Lists
2 Sullivan County, Missouri Cemetery Records, Volumes 1-5
3 Illinois Marriages, 1851-1900
4 OneWorldTree
Further sources/citations:
1850 United States Federal Census, 1860 United States Federal Census, New York, 1820-1850 Passenger and Immigration Lists
Page last modified