"Talitha" is a scriptural word turned into a name, from the phrase, "Talitha cumi," meaning "damsel arise" (Mark 5:41); it is not a nickname for "Tabitha," which is Aramaic/Hebrew for "gazelle."

1.  Marriage Index:  Kentucky, 1851-1900.  Liahona Research, Orem, UT (Broderbund CD-233):  not found.

2.  1860 Census Images (online at Ancestry.com; Image #121 of 295):  Hopkinsville P.O., Christian Co., KY, p. 623, PN 121, enumerated 14 Sep 1860 (extracted by Diana Gale Matthiesen):

850	850	Evan Hopson	58	M		Farmer	5000	13,150	NC
		A.M.F. Hopson	57	F					SC
"	"	B.M. Johnson	29	M		Farmer	1000	1500	Ky
		Telatha Johnson	28	F					"
		L.A. Johnson	4	F					"
		J.H. Johnson	3	M					"
		B.B. Johnson	2	M					"
		Anderson Johnson	18	M		Farmer			"

Living next door to James & Elizabeth (WEST) THOMPSON, in one direction; and, in the other direction, living next door to Frank JOHNSON (æ 25, b. KY, unmarried), who appears to be boarding with widow Elizabeth WITTY.  Anderson JOHNSON is the son of James David JOHNSON & Martha Elizabeth BRADLEY.  My first guess would be that "B.M." and Frank are Anderson's brothers, but they don't quite fit into the family as given at WorldConnect.  Perhaps they are first cousins.  Evan HOPSON's wife is Amanda DAVIS, so there's no obvious connection here; the JOHNSONs may have been boarders, not kin.