McDONALD'S 1908 HISTORY OF MARSHALL COUNTY, INDIANA, pg. 538
JOHN R. DIETRICH, a member of the firm of John R. DIETRICH & Company, merchants, bankers and grain dealers of Bremen, was born in Switzerland, September 20, 1848, the eldest son of John and Elizabeth (FEITZ) DIETRICH, both of whom also had their nativity in that country, where they were reared and married. In 1852 they made the voyage to the United States and came direct to Marshall County, Indiana, establishing their home one-mile west of Bremen. There the husband and father continued his agricultural labors until in 1855 when he opened a small furniture store in Bremen, thus being numbered among the city's earliest merchants. He continued actively identified with its business interests during a period of fifteen years, his trade gradually enlarging and expanding during that period, and at its close, in 1876, he transferred the business to his sons, John, Christian and Peter E., his death occurring a number of years later, in 1889. The wife and mother survived until 1894.
Their son, John R. DIETRICH, was but a lad of three and a half years when he became a resident of Bremen, receiving his education in its public schools and also in the Bryant and Stratton Business College of Chicago. In 1872 he became interested in the business which his father had established in the pioneer days of this city, and in 1876 his brothers, Christian and Peter, were admitted to a partnership therein, but in 1904 Peter withdrew to become a banker and the firm is now known as John R. DIETRICH & Company. Mr. DIETRICH of this review also owns eight hundred and eighty acres of land in Marshall and St. Joseph counties.
On the 13th of November 1872, he was united in marriage with Anna NEFF, a daughter of Jonas NEFF, and their four children are Urban J., Lloyd, Harold and Pearl. The eldest son, Urban DIETRICH is in business with his father, and the daughter is the wife of Martin HORINE, who is also connected with the firm of John R. DIETRICH & Company, a resident of Bremen. Mr. DIETRICH casts his ballot in favor of the men and measures of the Democratic party, and for nine years served his city as a member of its school board and for three years as a member of the city council. His residence in Marshall county covers the long period of fifty-three years, years largely devoted to its best interests and upbuilding, and he now has the honor of residing within its borders during a longer continuous period than any other resident.