Exeter Land Evidence:
In 1741 Samuel Slocum of Jamestown and Ann his wife deeded two pieces of land to his "infant" brother Peleg of North Kingstown, one piece to brother Moses, and one piece to brother John. Probably "infant" means minor; otherwise, his father must have had a younger second wife. In any case, Peleg would have been born prior to 18 June 1741.
In 1753 Samuel Slocum of Jamestown, yeoman, and Hannah his wife sold two tracts of land to "John Raynolds."
From the location and content of these two items of land evidence, these two Samuels appear to be the same individual, although possibly the second deed could pertain to his parents, also Samuel & Hannah. I do not know when they died.
Samuel's will dated 16 January 1775 (if it is indeed his will) says he is "aged." It mentions no wife, but mentions a deceased brother Benjamin Slocum (according to a transcript of the will in the RI Genealogical Register, Vol. 3 No. 3 p. 250). This is confusing because no genealogies I have consulted list a sibling Benjamin for this Samuel. However, I have added him (see note at Benjamin).
The will also mentions Samuel's children as follows: Samuel, Jr., of Jamestown; William, of Newport; Peleg; Abel; Sarah (Anrick?); Penelope; and Rhoda.