Perhaps this is a little naive on my part, but I plugged in the named Anna Christian Effie Waters on the site GovtRegistry.com under adoption records and they suggested a hit. This is a site one has to pay for, so I am not clear if they were actually responding to the entire name or not since I did not pay the fee to see more. I am assuming there was some attempt by LE to plug into national adoption/court records for 1973/74.