The newspaper announcements say she married Col. John Remington, but her death notice in 1797 identifies her as the wife of Col. Jonathan of Lansingburgh, NY. John did not move to Lansingburgh as Jonathan did, so the original marriage announcement should have read Col. Jonathan. Also, I have found no documentation that John's first wife died prior to this time.
Added evidence from Cheshire town records:
October 21, 1795 Marriage intended between Jonathan Remington Esqr of Cheshire and Mercy (?) Comstock of Providence Rhode Island.
"In memory of Timothy Remmington son of Jonathan & Mercy Remmington died 1797 age 4 (or 1) mo and 13 days" (source: The burial grounds of Lansingburgh, Rensselaer County, New York, p 68)