It was not limited geographically and was formed at the 1832 Triennial Convention (across the street during a recess, BTW), and it (like the Tract Society and American Baptist Foreign Mission Society) met during the Triennials.
There was tension between the northern and southern membership almost from the beginning, with the southerners complaining that too few missionaries were being allocated to the South.
You may also remember that Home Mission Society became the first formal battleground in the convention over slavery when the Georgians recommended a slaveholder to be a home missionary. The board had voted that it would not decide whether or not to appoint a missionary based upon his status as a slaveholder, but the Georgians made it clear in the nomination that he was. So the board sat on the nomination, neither denying it or accepting it.
That was in contrast to the Foreign Mission Soceity, which outright rejected selecting a slaveholder to be a missionary.
There was tension between the northern and southern membership almost from the beginning, with the southerners complaining that too few missionaries were being allocated to the South.
You may also remember that Home Mission Society became the first formal battleground in the convention over slavery when the Georgians recommended a slaveholder to be a home missionary. The board had voted that it would not decide whether or not to appoint a missionary based upon his status as a slaveholder, but the Georgians made it clear in the nomination that he was. So the board sat on the nomination, neither denying it or accepting it.
That was in contrast to the Foreign Mission Soceity, which outright rejected selecting a slaveholder to be a missionary.