I had such luck with finding Joseph Wallace's death certificate, I thought I would try two more of his siblings, hoping that one such death record would have their mother's maiden name. I ordered the Ossipee and Holderness Vital Records on microfilm to check the death information on Elizabeth (Wallace) Drew and Nathaniel Wallace. Strike two.
Nathaniel Wallace, born in 1778 is alive on 7 November 1848 when he deeds land as a resident of Ossipee. He doesn't appear in the 1850 U.S. census anywhere, nor in the Mass. Death Indexes. Sadly, the Ossipee Vital Records start in 1851 and are sparse to 1857, then from 1858 they are pretty good. Nathaniel didn't appear. He likely died between 1848 and 1850. [I will interject here that I've tried on numerous occasions to use the mortality schedules of the U.S. census 1850-1880 and have never found someone in it. I know for a fact from a burial record Rebecca (York) Wallace should be in the 1860 one and isn't.]
Elizabeth (Wallace) Drew died at Holderness on 26 June 1870. That date comes from a town history. Wouldn't you know that the Holderness Vital Records [which the Mormons falsely advertise as 1855-1915 on their catalog] has a gap between 1868 and 1875?! Genealogy can be frustrating, but does it have to be cruel? I mean that's just nasty. And yes, Elizabeth Drew also doesn't appear in the mortality schedule of 1870. Not that that would have any good information anyway.
Two more chances coming up: Rochester, N.H. Vital Records for the third sibling, Deborah (Wallace) Whipple, and then court records. Isn't the definition of insanity doing the same thing over and over and hoping for a different outcome?