On 26 November 1901, the Deutsche Correspondent reported that Lewis Trautwein and Barbara Schäfer, by Harry Diver, 108 South Bethel Street, had applied for a marriage license. [Deutsche Correspondent, 26 November 1901, page 5.]

On 29 November 1901, the Deutsche Correspondent reported:
“Schäfer—Trautwein.
Im Pfarrhause an der Ecke von Central-Avenue und Fayettestrasse traute gestern Abend Pastor E. Huber von der St. Matthäi-Geminde Hrn. Louis Trautwein mit Frl. Barbara Schäfer. Als Trauzeugen sungirten Hr. M. Schäfer und Frl. J. Hoblissell.” — “In the rectory on the corner of Central Avenue and Fayette Street, pastor Pastor E. Huber from St. Matthew's Parish, married Mr. Louis Trautwein and Miss Barbara Schäfer last night. As witnesses, Hr. M. Schäfer and Miss J. Hoblissell.” [Deutsche Correspondent, 29 November 1901, page 4.]

1910 U.S. Census, Baltimore City, Maryland
Ward 7, Enumeration District 82
1514 Eager Street
Dwelling 3, Family 5
Trautwein, Lewis, head, male, white, 30, married one time for 8 years, born in Maryland, both parents born in Germany, speaks English, salesman for bakery, not out of work on April 15, 0 weeks out of work in 1909, can read and write, rents home
Trautwein, Barbara, wife, female, white, 30, married on time for 8 years, born in Maryland, both parents born in Germany, speaks English, housewife, can read and write