(He briefly considered writing Pelmor, but Mirak and Letor were clear that his youngest hadn't been home in years, and would not come back to read what he had to say. Letor never seemed happy to talk about him, so while Tavaen missed him every day, he was sure there was a reason his son was not in any sort of contact anymore. He didn't write that message.)
Then Mirak... it had been an age since he and his beloved wife had shared a house, and he missed her dearly. Her opinionated assertiveness and strength of will and conviction that led him when he was unsure of the world, and her ability to share her thoughts clearly and honestly without stepping on toes, he missed all of her dearly. It wouldn't do to show that on his face, of course, she as old-fashioned as himself in many ways, but he could fill his letter with every term of endearment he knew, so that she'd know he thought her as majestic as he did when they married; he could could ask her questions about things she'd mentioned last time they'd called, so that she'd know he was thinking of her.
In the end, he chose to be mostly honest with her, too. He warned her not to worry about him, as he had with Ev'kor, and he knew she would listen where Ev'kor would not. He did share of his tiredness, of the pain in his chest and the taste of iron on his tongue on the bad days, when his cane was barely enough to help him stand. He also told her of Lama, because she'd keep it to herself, and neither Letor nor Ev'kor would be appreciative of him putting himself out there in such a manner. Mirak had never begrudged him his whims, though, not like that.