I've found this page on the Watkins; they came from Staunton-upon-Wye, the same place Montelion Cart. allegedly married his second wife.
http://freepages.genealogy.rootsweb.ancestry.com/~watkinsbrown/By the way, any news on Samuel cartwright Morris's siblings: Mary (b.1820 Kington), Edward Scarlett (b.1821 Eye), Charlotte (1826 Kington) and perhaps Caroline (1816, Grendon Bishop)?
Regarding Samuel C.M.'s daughters (for it seems Richard died single sometime after 1901), here's what I've found which seems plausible:
Catherine (b.1849 Kinnersley), married George Smith in Jun 1874 in Weobley.
Ellen (b.1855 Kinnersley) married William Vickress in Jun 1889 in Kington.
Mary (b. 1867 Kinnersley) married Amos Lane in Dec 1888 in Kington.
I thought that Samuel Morris (their brother) married Elizabeth Alice Vickress, of Deal (Kent), but in one census entry (1881, Almeley, where they lived) it says she's from Staunton-on-Arrow...

Any help?