According to his profile in The Great Migration, Vol VI, R-S, page 516, Francis Stiles-26 was the son of Thomas Stiles, baptized in Millbrook, Bedfordshire 1 August 16012. Anderson does not name his mother. Her profile, formerly Unknown-381759 has been merged with Mapley-66. What is the evidence that her name was Maria Joan Mapley? Should it be changed to Unknown Unknown? Currently the only sources on the profile appear to be unsourced Ancestry and Family Search trees.