Question: What is the name of this publisher of 11 free suburban weekly newspapers, established by Roger Baynes, and for which City Messenger is part of the group?
Context: RISN Operations Inc., also called Rhode Island Suburban Newspapers, is a privately owned publisher of three daily newspapers and several weekly newspapers in the U.S. state of Rhode Island.  The company was founded by Illinois-based newspaper executives in early 2007 to purchase the Rhode Island holdings of Journal Register Company, which it did for $8.3 million. Wednesday Journal is a newspaper publisher based in Oak Park, Illinois.  It publishes free weekly community newspapers throughout Chicago, paid weekly newspapers in the city's western suburbs and parenting magazines in the Chicago metropolitan area. Micromedia Publications is the publisher of seven weekly newspapers based in Monmouth/Ocean County, New Jersey.  The newspapers cover Howell Township, Jackson Township, Toms River, Manchester Township, Brick Township, Berkeley Township, Lacey Township, Barnegat Township, Stafford Township and Long Beach Island.  The newspapers are published every Saturday and are distributed through various distribution methods.  All seven newspapers are a free press. City Messenger is a weekly suburban newspaper in Adelaide, part of the Messenger Newspapers group.  The "City" covers the Adelaide CBD and surrounding suburbs and has recently experimented with targeting public transport commuters, similar to mX, also owned by News Limited. Messenger Newspapers is the publisher of 11 free suburban weekly newspapers together covering the Adelaide metropolitan area.  Established by Roger Baynes in Port Adelaide in 1951, "Messenger" has since acquired other independent suburban titles to become Adelaide's only suburban newspaper group.  The paper is a subsidiary of News Limited. Celtic Weekly Newspapers is a series of seven weekly newspapers published in south Wales by Media Wales Ltd (formerly Western Mail & Echo Ltd), part of the Trinity Mirror group. Suburban World Newspapers, based in Needham, Massachusetts, United States, was a privately owned publisher of seven weekly newspapers in the suburbs west of Boston in the 1980s and 1990s. Beacon Communications Corp. was a newspaper publisher in Acton, Massachusetts, United States, operating a dozen weekly newspapers as well as daily newspapers in Hudson and Marlborough, Massachusetts.  It was bought by Fidelity Investments in 1993 and incorporated into Community Newspaper Company, Massachusetts' largest weekly newspaper publisher, now owned by GateHouse Media. Metro Newspapers also known as Metro Publishing is an American newspaper company based in San Jose, California.  It publishes four free alternative weekly newspapers in Northern California: "Metro Silicon Valley", "Good Times", the "Pacific Sun" and the "North Bay Bohemian"; and three community newspapers: the "Gilroy Dispatch", the "Hollister Free Lance" and the "Morgan Hill Times".  Together, the publications reach a weekly audience of about half a million people, according to The Media Audit. Suburban Life Media is a Downers Grove, Illinois-based publisher of 20 weekly newspapers in Chicago's western and northern suburbs.  Formerly known as Suburban Life Publications, it was purchased from GateHouse Media and renamed by current owner Shaw Media in October 2012.
Answer: Messenger Newspapers