I have some Warnock Family connections that might be useful:
Glasgow, Lanarkshire:
Elizabeth Warnock Stevenson McHarg (1909 - 1981) Spouse James McHarg (1909 - 1978) - My Grandparents
Siblings of Elizabeth: Edward 1891; Martha 1893; Mary Ann 1897; Alexander 1900; William 1902; Colin 19?? - As yet, no information on other dates or spouses of siblings.
Parents of Elizabeth: Elizabeth Warnock Stevenson (1868 - 1946) Alexander Stevenson (1865 -1944) Married April 5, 1889, Bridgeton, Glasgow.
Grandparents of Elizabeth: Edward Warnock and Ellen Chalmers - No dates or birthplaces yet
This is all I have at the moment, but I'd be happy to share any additional family information if there's a connection.