I'll help you locate the deposits made in 2019 and 2020, @carol85.
You can run the Deposit Detail report and change the reporting period into a specific date range. When you want to exclude the sales receipts and payments, you can filter the Transaction Type to show depositonly.
Here's how:
Choose the Search icon on the upper right.
From there, type deposit detail and then select the Deposit Detail report.
Click Customize and then go to Filter.
From the Transaction Type drop-down, select Deposit.
Go to General and then change the Report period.
Click Run report.
I've added a visual reference for the report output. From there, you can click the Date to see other details of the deposits.
I've added articles to see more insights on how to personalize report data and save it for future use: