Lum family in Mississippi

I'm looking for any info on William Lum (born 1828) Sarah Columbia Lum (born 1832) and their descendants.They were married in Copiah Co., MS in 1850 and their children were Josephine, David Whitfield, Martha, Oliver, and William.My line is thru David so I have quite a bit of info on his descendants,but I'm sure there is plenty I don't have.I would really love copies of any old pictures.I'm trying to gather as much info as I can for an upcoming reunion.
It has been a couple of years since I have been on this site and I've lost all the email contacts that I had.I would love to re-connect with anyone I corresponded with before.
Thanks
Allyson