I'm looking to clean up duplicates in these trees. My ancestor Col. Adam Comstock descends from both these families via siblings Elizabeth Elizabeth Comstock and Capt. Richard Arnold, offspring of Thomas Thomas Arnold, of Ilchester & Providence
The line from Elizabeth is via her son Hazadiah to grandson Gideon. The line from Capt. Richard is via son Richard, and grandson Richard III, to great-granddaughter Ruth who married Gideon.
When I try to assign parents to either Elizabeth Mercy Comstock (Arnold) or to Samuel Comstock II on existing Gideon Comstock tree, I am blocked from doing so with the admonition it would "split the tree."
Any help would be much appreciated. Gideon Comstock