On the 1900 census for Halifax co. va John L. Allen in listed with a Susan E. with a daughter name Eva it looks like Susan E might have been Susan Elizabeth which might account for the nickname of Lizzie. the index lists him as John C. Allen but it is an L on the page.
He was born in Mar of 1860 and Susan E. in Apr of 1875
and EVa Jan 1897.
According to the 1880 census there is a JNO L. Allen listed as a 20 year old with two kids.
Ada D. age 3 and Lewis Char age 1 no wife listed. Was this the wife Lizzie you might be refering to. It looks like they might have married around 1876 and she died by 1880. according to the 1910 he and Lizzie have been married since 1895 and since he is living with a Susan E. in 1900 its probably her. Except he says he has only been married once. but both kids and wife could have died before 1895 from the first marriage
Married Susan Elizabeth Spencer 5 dec 1894 in Halifax co. va
His parents were Lafyette Allen and Mary Snead.
in 1900 he is living next door to a Louis Sneed/Snead
So I am sure this is the right one.
He is listed on the world connect board under John Lafayette Allen if you want to look him up and get in contact with the ladys who listed it.
Hope this helps.