I am trying to find a death record for Lydia Whittle. She is in the 1830 Hillsborough county census living in Dunstable. In 1840 same place but now called Nashua. She is not found in the 1850 and I believe she would probably have died by then. I don't know when she was born but a daughter was born in 1782 so she would have been pretty aged when she died probably between 1840-1850.

Any help is greatly appreciated. Thank you.