Monetary gifts from those not invited

Hello! My husband and I finally tied the knot Friday, June 4!!! I will post some pictures of our day to the forum soon.


We received some monetary gifts from people who were not on the guest list but are just excited for us. I wanted to know what the thank you note etiquette was for this situation. I’ve logged all of the people who have kindly gifted us money even though they were not invited to our wedding. Should we send a note? I only ask because we don’t already have the addresses of these people since they were not apart of our guest list. If I did have their address I would have drafted up a note already.
Is it okay to ask them for their address to send a thank you note?
Please share how you are handling responses to gifts from those who were not on the guest list to your wedding. Of course we thanked them upon receiving the monetary gift. Most of these gifts were sent through cash app or Zelle. We just want to know if we should also send a card.
Thanks in advance!