I am helping a friend research his family, and he has Francoms in his tree. I wonder if there may be a connection here.
He has an Eliza Francom marrying a Richard Drury in 1878. Eliza is the daughter of Joshua Vanderkemp Francom and Mary Ann Jones, and was born about 1859 in Liverpool.
As well as Vanderkemp being a prominent middle name in his family, the name Denver appears quite frequently too. I wonder if any of this connects with your family.