Joe Gadus’ GEDCOM file had a birthdate of 16 Nov 1858 for John, without indication of its source. 1858 is within the period when birth records for Kentucky were submitted to the state auditor, so perhaps it is from Floyd Co birth records. (A family bible seems unlikely as a source since most of the family does not have exact birthdates.)

The reason I am mentioning my source for this date is that there is a John Baldridge buried in the Baldridge Cemetery with dates 11 Sep 1858 to 1 June 1924 on his stone, and there is also a Margaret Baldridge buried in the same cemetery with dates 1867 to 1947. That looks very likely to be the stone for this John P. Baldridge, but the birthdate is different than the one from Joe’s file.