The entries you provided are almost correct, but there's a minor error in the entry for January 20, 20Y4. Let's correct it:
20Y3, Nov. 21
Notes Receivable 66,000
Accounts Receivable-McKenna Outer Wear Co. 66,000
Dec. 31
Interest Receivable 495 ([$66,000 * 9% * 40/360])
Interest Revenue 495
20Y4, Jan. 20
Cash 66,495 (Principal + Interest)
Interest Receivable 165 (Interest accrued between Dec. 31 and Jan. 20)
Notes Receivable 66,000 (Principal)
Interest Revenue 660 ([$66,000 * 9% * 60/360])
So, the corrected entry for January 20, 20Y4, is as follows:
Cash 66,495
Interest Receivable 165
Notes Receivable 66,000
Interest Revenue 660
All other entries are correct.