I believe Almarinda Etna and Eliza Jane may be sisters. The names and info match up from the 1850 Federal census
Robert Campbell Age: 47 Birth Year: abt 1803 Birthplace: Tennessee Home in 1850: District 1, Gibson, Tennessee Gender: Male Family Number: 16 Household Members: Name Age Robert Campbell - 47 Sarah Campbell - 43 Susan Campbell - 13 Etna Campbell - 11 Robert Campbell - 8 Eliza Campbell - 6 John Campbell - 1 Willis F McCaslin - 23 Mary McCaslin - 21 William McCaslin - 0
The Mary McCaslin listed may be Mary Campbell who married Willis McCaslin?
There is a difference between the names on the 1850 Census versus the Family Tree Maker link you provided. FTM lists an Ann Elizabeth Campbell b. 1844. The census list Eliza (Elizabeth??) at age 6 which would match with the 1844 birthdate. However, the Eliza I have in my records is Eliza Jane not Ann Elizabeth.
Thanks again for your reply with the info and the links.