Will nursing homes allow a memorial service for a spouse of a resident in the nursing home?

Nursing homes have chapels and rooms that are used for multiple purposes.

You could prepare appetizers, a main dish, dessert and drinks to serve or have it catered. You could even skip a main dish if you want to keep it simple.

Music would be a nice addition. I have been to memorial services with a pianists and a singer which is lovely but I have also been to some with recorded music.

I lost my best friend last year. One of her favorite songs since we were teenagers was Let It Be. That song was played at her memorial service, along with a couple of others. Many people chose to play a favorite song of the person that they are remembering.

I’ve been to memorial services online. They were very nice and can include pix of the deceased’s life, music, elegies, etc. You might be able to stream it into the nursing home where he is. In this time of Covid, it makes more sense than gathering together a bunch of people with the comorbidities of age and sickness. Ask the funeral home how it could be done.

You may have an issue with Covid restrictions, but yes, they do that all the time. If necessary, you could do a small, family-only service there, and a another one elsewhere if you expect a larger number of people would want to come.

A friend did that when her FIL died. Small family service and luncheon at MIL's AL, and a larger event at the mortuary on another day.

The nursing home my mom was in had a large reception room that was used for Mass, large gatherings and staff meetings.
They allowed us to use it for Thanksgiving and Christmas parties, Mother's Day and the like.

Ask. There may be a limit on how many folks you can have in attendance.