Loraine (Lorraine) Pratt was born in Mt. Clemens, Michigan in 1840, to Mr. and Mrs. E.G. Pratt. She married Frederick Immen on December 6, 1860, when she was not quite 20 years of age. Frederick Immen was a carpet and import merchant. The Immens moved to Grand Rapids in 1865.

The couple had two children. Their first, Arthur Pratt Immen, was born in Mt. Clemens. He died at the age of 20. Their other son died in infancy.

Loraine devoted much of her time to music and literature. She was active in First (Park) Congregational Church. Documentation of the church's Tiffany stained glass collection states two plain windows on their balcony, which are called the Pastor's Windows, were placed there in 1916, a gift from Mrs. Immen. Another window in this church "Jesus at the Age of Twelve", was given in memory of the Immen family. She is credited as being the founder of the Shakespearian Club, and carried this literary emphasis to her activities in the Ladies Literary Club. To the LLC she gave the Shakespeare “Rose” stained glass window. The City of Grand Rapids received the Longfellow bust placed in Fulton Park (currently Veteran's Memorial Park), Lincoln bust located in Foster Park at the corner of State and Washington Streets (now State Street Park), and the Drinking Fountain that was located in Monument Square Park.

Immen died October 21, 1927 at the age of 87, survived by a niece and the niece's daughter. Her husband, (d. 1909) had left Immen with wealth and real estate. Immen is buried in Oak Hill Cemetery.