Another source to try:
ATHS in Kansas City. One year at our Reunion, we visited their headquarters. They have a lot of information and in the past few years have been digitizing it. At the time of our visit, they told us if you were looking for specific information, just give them a call.
There are a few ATHS members on the site (including Mike B and us) so if they only release the information to a member, let us know. We'll see what we can do to help.
Last one.
Here are 12 issues for 1929 for sale on eBay, $20 plus shipping. Maybe someone in here has seen these Service News and know if they are really worth it.
Peg