Do you have any birth or death dates for these Clarks?
On the 1930 census for Bertie County, NC (I assume that is where your "kin" are from..
Was a William K. Clark age 32 and wife Harriet age 28.
In 1930 their children were Irvin E. Clark age 6, William L. Clark age 5, James A. Clark age 2yr 8mo, and Cecil Clark age 8mo...
Hope this helps...
If this is not your family I will need more info to go on...
SGM