John Wesley Milbury looks like he may be descended from Mayflower passenger Richard Warren (don't have full primary source documentation yet):

Richard Warren
Mary Warren + Robert Bartlett
Joseph Bartlett + Hannah Pope
Mary Bartlett + John Barnes
Nathaniel Barnes + Annis (?)
Elizabeth Barnes + Joseph Thomas Milbury
Benjamin Milbury + Sarah Marshall
John Wesley Milbury + Hannah Ward

Do you have any documentation on the above?