Looking for Purdue Ticket Stubs

[chb71]

Morning, everyone. I'm a ticket stub collector looking for a couple of Purdue games:

11/11/50 Northwestern @ Purdue (football)
12/1/51 Purdue @ Kansas State (basketball)
3/20/1981 Duke @ Purdue NIT (basketball)

Please email me at hardware303@gmail.com if you can help. Thanks in advance!