Jehovah's Witnesses are encouraged to use obituaries to write letters to. JW sources:
*** g01 1/22 p.7-8 Living Successfully With Your Ailment—How?***
“I ask a visiting nurse to hold the newspaper for me. Together we read the obituaries and select some.Then I tell the nurse what thoughts I would like to include in a letter to the relatives of the one who died, and the nurse types the letter. With the letter, I send the brochure When Someone You Love Dies, which explains the Bible’s comforting hope of the resurrection. I do this every Sunday afternoon. It makes me happy that I can still share the good news of God’s Kingdom with others.”
*** g95 6/22 p. 23 How I Benefited From God’s Care ***
"There I began to share in the ministry by writing letters to people whom the Witnesses had difficulty contacting in the house-to-house ministry. I also read the obituary columns and wrote to relatives of those who had recently died, enclosing comforting scriptures from the Bible."
*** yb95 p. 47 Worldwide Report ***
Now 94, she is still busy witnessing. Recently she completed a year of auxiliary pioneer service. She is able to walk a little with a cane—enough to take advantage of the opportunities presented when neighbors, friends, relatives, salesmen, postmen, or anyone else calls. Still she has to do most of her witnessing with a pen. She finds names and addresses in the obituary columns in the daily paper and writes to some of these
*** km 1/70 p. 8 par. 3 Presenting the Good News—By Letter ***
"Many in the congregation know that this sister has had good success in witnessing by mail... Some names she gets from the obituary column. Or if there is information in the local paper about new mothers, or engaged individuals, she writes them, sharing good news from the Scriptures to encourage them as they embark upon their new responsibilities."
*** w67 6/1 p. 345 Letters—Not Outdated ***
"He had received a letter from a Witness who obtained his name and address from the obituary column in the newspaper. Though the man was a stranger to her, she had written a kind letter explaining the Bible’s glorious hope of a resurrection. The man concluded that surely he ought to look into an organization that would take the time to go from door to door and to write letters of comfort to people."
*** w56 11/15 p. 688 Preaching by Writing Letters ***
"At one of the Society’s Bethel homes a brother, close to eighty years old, unable to climb stairs because of heart trouble, sends letters of comfort together with literature to those whose addresses appear in the obituary column because of having lost a loved one."
