My nephew sent a FB message to my husband on his birthday. This nephew, the only child of my husband's late half-brother, had had a very hard life--and because his dad was in the Navy for much of it we were never nearby to run interference. When his father, an end-stage alcoholic, died, we couldn't find my nephew. Eventually my niece found him on a prison database on the west coast--he was incarcerated for ten years.
When I learned of his incarceration, I wrote him and sent money for his account from time to time. For a long time, only my husband's aunt and I wrote him, but eventually we persuaded others to do so. After he was released, he met a young woman with three daughters and had a son with her. He has led a good life on the west coast for three years.
Two Thanksgivings ago, his fiancee posted that they weren't having a Thanksgiving due to financial problems, and I sent him money via PayPal for a Thanksgiving dinner, but he lives 2000 miles away and we pretty much just have contact through FB.
On my husband's birthday, my nephew wrote on his FB page about what our letters and support meant to him "in the darkest days of his life." I was so touched. It was so beautiful. I am grateful that he was able to change, that he has a family who loves him, and that we were able to play a small part in that.
And I am grateful that he told us so on my husband's birthday.