South Bend freqs not in database

[cubn]

407.7375 136.5 repeater, unknown user - found via CloseCall while at Coveleski Stadium
453.1875 CSQ repeater, related to the airport

 

[rdale]

It appears the second is in the FCC DB linked here:

FCC Callsign KJI530 Details

You'd need to describe what the user said on the repeater to get a little help on ID'ing that...