He first used the name Buson when he edited those notes into his Saitanchou anthology (Utsunomiya Saitanchou) in 1744 when he lived in the house of Rokyu SATO, who was Gantou's adopted son-in-law. He was living in Utsunomiya, in the kingdom of Shimotsuke (Utsunomiya City, Tochigi Prefecture).
その際の手記を寛保4年（1744年）に雁宕の娘婿で下野国宇都宮（栃木県宇都宮市）の佐藤露鳩（さとうろきゅう）宅に居寓した際に編集した『歳旦帳（宇都宮歳旦帳）』で初めて蕪村を号した。