Peter Jackson's The Hobbit and Lord of the Rings Wiki:Workshop/Milo Burrows

Milo Burrows was the husband of Peony Baggins and the father of Moro, Mosco, Myrtle and Minto Burrows.

Biography
Milo was a grandson of Gorbadoc Brandybuck of Buckland, who married into the Baggins Family when he wedded Peony, a distant cousin of both Bilbo and Frodo Baggins. They had four children - Mosco, Moro, Myrtle and Minto. Milo was one of the 144 guests of Bilbo's farewell party. He also had a tendency to forget to answer to a letter.