A good question, Frank. The answer may be complex. I'm not an expert on the ACS; what I've read indicates that folks supported the ACS for a variety of reasons and included religious evangelicals, some "abolitionists," some slaveholders, and those with other agendas. Maryland itself had a Maryland State Colonization Society. Do you mean were his views on slavery accepted by his parishioners at Calvary parish in NY, and by his bishop there? I guess I'm assuming that the parishioners at Calvary parish in NY, where he served from 1849 until he went to Baltimore in 1862, and his bishop accepted whatever views he had. How did his parishioners at Christ Church in Baltimore view him, and also Bishop Whittingham of Maryland? I've read that Bishop Whittingham supported the Union, but he was not an abolitionist. It could be that the Rev. Dr. Hawks supported the rights of Confederate secession, but was not an abolitionist either. Whatever his views on secession and slavery, his remarkable skills at preaching were apparently valued in both NY and Maryland. And after the war was over, he returned to New York.