Confirmation. Boston Avenue United Methodist Church did host the United Daughters of the Confederacy national convention in 2013

I came across this newsletter for the Maryland Division of the United Daughters of the Confederacy (UDC) in which they mention that they had their service at the Boston Avenue United Methodist Church in Tulsa, OK.

This is the direct link to the newsletter.
http://www.mdudc.org/Newsletters/UDC_Division_Newsletter__-_Winter_2013.pdf

This is the Internet Archive link to the newsletter.
https://web.archive.org/web/20140219115149/http://www.mdudc.org/Newsletters/UDC_Division_Newsletter__-_Winter_2013.pdf

From the newsletter:

The Memorial Service on Sunday afternoon was held at the beautiful Boston Avenue United Methodist Church. The church is in downtown Tulsa, OK and has a congregation of over 8,500.

This shows how the architectural prominence off the building is used to enhance the prestige of the convention. Notice the reference to the location of the church and the size of the congregation to inform the reader that the church which allowed them this space is important.

The campaign is documented at www.templeofdemocracy.com/bostonavenue.htm.