Henrietta Merritt m. 1828 John H. Fraser

I'm looking for the parents of Henrietta MERRITT. She married John H. FRASER in 1828. Based on her age in census records, she could have been born anywhere between 1795 and 1814 (I suspect that's a bit late, given that she married in 1828).

Their children were John jr (d. as infant), Alfred W., Sarah Jane, Edwin, Charles, and Henrietta.

She is buried in Trinity Church Cemetery on 155th & Riverside. Her cemetery information is as follows:

Henrietta Fraser Married Woman Born NY Age 54 years, 11 months, 29 days
Address 116 Varick St. Died 6.21.1864 Cause of death Dropsy Plot 118 Private Lot W.D.
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others in same plot:

Maria HARLOW (widow of John HARLOW) d. 12.27.1852
Melancthon M. FREEMAN (Maria's son-in-law) d. 11.9.1865
2 infant children of Melancthon: infant d. 3.28.1854; Herbert d. 1.12.1864 (age 8m 20d)

---- what is her connection to this family?????
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The rest of her family is buried elsewhere in Trinity Church Cemetery ...

I have been researching this family for some decades, so would appreciate any help available!