Wealthy/Welthy Lorinda HOLDEN and Timothy Lorenzo SARGENT

Hi, I am looking for any information at all on these two people.  I have had a lot of different dates found for Timothy SARGENT (1798-1838), who is the son of Timothy Chase Sargent and Abigail Allen (whom I do not have any info on either, except that she was born in 1780).  I cannot find his grave anywhere, and I need some confirmed dates.

The same goes for Wealthy/Welthy Lorinda HOLDEN (1806-1894), I have that she may be the daughter of Josiah Holden and Leah Chase, but I cannot credit the source which I was provided with.

Any information at all would be greatly appreciated!

Thank you so much,

Chris Refer