Dear Annie: We never received acknowledgement of our memorial donation

DEAR ANNIE: Our dear neighbors recently lost their twins. They were stillborn, and it was such a tragedy. So awful.

I sent a sizable memorial to an organization and sent the acknowledgment to our neighbors with our deepest sympathy. It has been close to a year and we have not received an acknowledgment of said memorial. I’m at a loss as to whether to say something like, “Our memorial must have gotten lost in the mail, but this is what we did,” or just not say anything.

I don’t want them to think we thought so little of their tragic loss that we did nothing, but then if I do say something, will it just bring up their horrible loss again?

A similar but not as sensitive issue is when my husband and I send checks for weddings, anniversaries or birthdays and receive no acknowledgments. We kn