I completed the Aeolian 58-note organ roll catalog about 12 years
ago, with only 150 titles not found out of 6,900 originally issued.
Most of those missing should have been in the catalog or supplement
for a particular year but the numbers were apparently not used.

Thanks to Adam Ramet, here in UK, a missing title has been found:

  L10800 March of the Jewish Warriors by Shinn.

Kevin McElhone, Northants, UK