Quaker calendar dates

Date: [unknown] [unknown]
Location: [unknown]

Please note that Quakers did not use the names of months or days, believing them to be non-Christian in origin. Because of this they used "First Month, First Day" etc. Before the western calendar changed in 1752, First Month was March. SO... when you see a Quaker person's date of birth that says, for example, 11th Month 1740, that would convert to January, 1741, not November 1740.

Here is a link to Swarthmore College's explanation: https://www.swarthmore.edu/friends-historical-library/quaker-calendar