Universal Duchess Music Corp.

Possibly bought by MCA Music Publishing in 1967 (according to http://www.kochmusikverlage.com/pop/index/index/site/_pop_company_history : in 1967 MCA Music Publishing bought Leeds Music Publishing (founded 1935), Duchess Music Publishing and Pickwick Music Publishing). According to http://www.universalmusic.com/company/history this was in 1964.