I'm also looking for the Sypherd (Siferd/Seiffert/Siford/etc.) family. I relate back to Matthew Sypherd, child of Mathias & Elizabeth (Dorf/Durff/etc.). Mathias is said to have been born in 1763 in Maryland (according to Rev. War documents). I note that there is also a Henry Sypherd living in Loudon Co., Virginia at the same time as Matthew. Possibly Henry and Matthew are both children of Mathias & Elizabeth. Henry appears to have changed the spelling of his last name to Syphard by 1840. Most of my side of the family ends up in Ohio, Illinois, Iowa, and eventually Kansas.
I would be happy to share any information I have. Although I have very little information, I would love to learn more.
Cheers,
S.M. Tomie Gowdy-Burke