Frank, if you really insist, I can see about getting someone at the national office to give you clearance to publish the recordings. However, the LP has never endorsed the State's copyright legislation, and many Libertarians (including me) vehemently deny the authority of the State to assign ownership to what are, after all, just very large integers. Any digital recording can be represented as one extremely large integer, and I would love to see some group like the Electronic Frontier Foundation push the envelope to test to see how small an integer the State's copyright rules apply to.
My own position is this: "Communities may recognize intellectual property in expression to prevent unauthorized reproduction in cases of a) competition that diverts commercial benefit from the owner to the competitor, b) attributed use with unattributed defamatory modification, and c) unattributed use of any kind."
However this turns out, I would hope you would allow the recordings to be digitized and shared on a fair-use basis with anyone who can convince you she is an earnest student of LP history.