https://www.masshist.org/database/viewer.php?item_id=774&br=1
MHS Collections Online: Letter from Phillis Wheatley to Obour Tanner, 30 October 1773
Massachusetts Historical Society, Collections Online: Letter from Phillis Wheatley to Obour Tanner, 30 October 1773
phillis wheatleyobour tannermhscollectionsonline