Sorry for your loss I lost my wife a few years back and it's a difficult time. I am assuming this is his account. Open up the seller and look for the listing are whiich will look something like the following. Click on the active listings, this account currently has 192 active.
This will give you a listing of the individual items. There is a drop down button on the left side of each item that you can click and end the listings. All but one of your listings are BIN and the one auction item has no bids.
Once you have ended them all there is another section that shows the unsold and not relisted. Open this section and delete all the unsold items just in case they were setup to automatically renew. This will stop any additional sales. It looks like you have about 7 items that have sold since 1 January. On the seller hub is a section called tasks that will tell you if you have items that need to be shipped. You can open the individual orders and ship them or cancel them if you do not want to deal with it. If you cancel inform the buyer of the reason. While the cancelations may impact you husbands seller ratings it is probably irrelevant since at some point you need to close the account based on the information ckimodog provided.
You could check with family or friends to see if any of them could help you with the cleanup.
