Diana Elder and Nicole Dyer discuss how to prove an ancestral marriage when no direct marriage record exists, using Diana’s research on John Dawson and Elizabeth “Betsy” Cessna. They break down the steps of the proof argument, including bracketing the marriage window between 1811 and 1816, conducting negative searches in regional county records, and uncovering extensive financial and legal associations between Dawson and the Cessna family over twenty years. They also examine a key 1830...