The phrase "auxiliary member" is correct and usable in written English.
It can be used in contexts where you refer to a supporting or additional member of a group or organization, often in formal or technical discussions.
Example: "The committee will include an auxiliary member to assist with the research and provide additional insights."
Alternatives: "supporting member" or "additional member".
Coast Guard Auxiliary member and instructor.
To answer the question on every fan's mind: Yes, Neko Case, their flame-haired, burgundy-voiced auxiliary member, will be appearing.
At the back of the stage, Kit Monteith, a sixth, recent auxiliary member of Foals, occasionally thwacks a cowbell you can't really hear.
Dr. Henry A. Kissinger, an auxiliary member of the I.O.C., said, "I think this is a very important step in the evolution of China's relation with the world.
Some reports have it that they are a duo with one auxiliary member, others that they are a trio with a live drummer.
Hinsche was a member, with the sons of Dean Martin and Lucille Ball, of a 1960s group called Dino, Desi and Billy; later he spent many years as an auxiliary member of the Beach Boys.
Priority will be given to Rye Brook village employees and local teachers, police auxiliary members, firefighters and volunteer ambulance corps workers.
The Coast Guard has a fleet of 24 vessels, 900 active and reserve guard members and 2,000 auxiliary members in the region, Captain Bone said.
Some reckon that Wesley Clark (Army, four stars), William E. Odom (ditto, three stars), and Bernard E. Trainor (Marines, three stars) are entitled to spots as auxiliary members.
Mr. Saroea and Ketil Mosnes, both multi-instrumentalists, make up the core of the band, which also includes auxiliary members like the saxophonist Kjetil Moster.
The official members, including Mr. Weston, Ansel Adams and Imogen Cunningham, decided to allow auxiliary members to join the exhibition, and Ms. Lavenson was among those chosen.
