The Henry Straight Genealogy lists 10 children for this couple, including a son named Remington Straight (also in Beaman's RIVR, NS). I wonder what the Remington connection is in this family, other than a daughter having married a Remington.
In the 1850 Federal Census, David Strait is age 67 and living at West Greenwich, RI. With him is Freelove, age 59. Is she a second wife, or a companion? WG marriages do have a marriage of David Straight & Freelove Potter in 1847, so I am making an assumption that this pertains to this particular David Straight.
In the 1860 Federal Census, he is still at West Greenwich. Phebe Fiske is with him, a housekeeper. She is most likely his sister, Phebe (Straight) Fiske, 1781c - 27 JAN 1871.