Hi,
David age 70 in 1841 was Anne's father ( see christening of unknown Watts daughter of David Watts & Jane Qualtrough ch 21 Feb 1821 under the christening of Margaret Watterson ch 18 Feb 1821 daughter of Henry Watterson & Ellinor Nelson; Rushen.
David Watts married to Jane Qualtrough 20 Oct 1808; Rushen - Jane (Qualtrough) Watt buried 26 Nov 1824, not listed on Brians burial index.
David Watts buried 4 mar 1853, listed on Brian's Index. See also 1851 census in which David is listed as a beggar.
Tim