615 N Mill St Built circa 1878. In 1873 John Christian Peterhans (Chris) purchased a plot of land from George Starkweather and built this home. This home was owned by his descendants until 1975. Below is the obituary from The Plymouth Mail (newspaper) that was published in November of 1915:
“The death of J.C. Peterhans, which occurred last Friday morning at the family home just northeast of the village, Plymouth, loses one of her well-known and most highly esteemed citizens, and another veteran of the Civil War has answered the last roll call. Mr. Peterhans was a man who was honest and upright in all his dealing and had a host of friends. The funeral was held from his late home, Monday afternoon at two o’clock, Rev Joseph Dutton conducting the services. There was a large attendance of neighbors and friends. The members of Eddy Post No. 231 attended the services in a body.
The floral offerings were many and beautiful. A large American flag was draped at the head of the casket, which was the regimental headquarters flag of the 16th Michigan Infantry, to which Mr Peterhans belonged. The flag was not a regimental flag that was carried on the march or on the field of battle, but a flag that floated over the commanding officer’s tent, when they were in camp. It is more than 50 years old and has been under fire on several occasions. At the close of the war the flag was presented to Lieutenant Charles Salter, who saved the flag from being captured at Gaines’ Mills, June 27, 1862. In 1892, Lieutenant Salter died and it was given to Major JW Jacklin for safe keeping. October 6, 1906, it was left with the late George C. Peterhans and since his death JC Peterhans has been its custodian.
The internment took place in Riverside Cemetery, G.A.R. taking part in the committal service at the grave.
John C. Peterhans was born in Plymouth, Michigan, February 9, 1840, and departed this life November 5, 1915. He was a twin brother of the late George C. Peterhans, who died March 17, 1911. Mr Peterhans had been in failing health for nearly two years, having been confined to his home for the past two months. He bore his suffering very patiently. He was a member of Eddy Post, No. 231, G.A.R. and during his sickness spoke very much of his comrades. At the age of nine years, Mr Peterhans moved with his parents to Cincinnati, Ohio, remaining there about one year. He then returned to Plymouth, where he lived most of his life, with the exceptions of a few years spent near Caro, Tuscola County. On September 8, 1861, he enlisted in Co. F, 16th Michigan Infantry for three years. On October 25, 1862, he was discharged on surgeon’s certificate disability, at Antietam, Maryland. On July 2, 1863, he married Hester A. Smith of Plymouth. To this union were born five children, two sons, George and William having died in infancy. He leaves to mourn their loss, besides his widow and three daughters, three brothers, Henry and Emanuel of Caro, and Charles E. of Mt Pleasant; two sisters Mrs. Christina Ingersoll of Caro, and Amelia Peterhans of Cleveland, Ohio, also several other relatives and a host of friends. “
~ Today we are happy to still be graced with the presence of his former home adding to the historic beauty of Plymouth’s Old Village. Although the home has a large, modern addition on the backside, the original structure is still very much intact and is also used for commercial purposes.
John Christian Peterhans
View of Mill Street (near Liberty St) looking South circa 1905
PlymouthMiDiscoveries 
Many Plymouth residents might remember this was the location of “Brians Sweet Shop” for many years in the late 70’s to around 1990. Around 1973 a larger brick building was added to the rear of this home that is residential upper apartments and multi-tenant commercial businesses on the ground floor. One long time business was the “Hands Of Tyme” clock shop which closed around 2011. The home has an upper apartment and has hosted several beauty salons on the first floor. As of 2016 it is has been a lawyers office.