We can use the advanced search, nancyl.
Let's press Ctrl + F simultaneously on your keyboard to appear the Find window. On the Filter section, search and select Number. Enter the range of the check number in the Number fields (example: check # 1001-1005), then click Find button. On the list of results, you'll also see the customer's name under the Name column. Double-click on the result to open the transaction.
Aside from that, you can pull up the Transaction List by Customer report. We can customize it to see the data you need.
I've included this article to learn more about Accounts Receivable workflows in QuickBooks Desktop.
Leave a comment if you need more help. Have a great day!