She was the daughter of Joachim Nicholas Pein and Anna Sommer. Her father was born in Hamburg, Germany and mother records state as being from Germany.
Her name was listed as Johanna M. in the census with husband James Julius Ott (#105721109), in Nevada City, Nevada County, California. She and husband Julius Ott divorced after their four children had married. She remarried to George Bonney.
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Name: Johannah Pein
Age: 16
Birth Year: abt 1844
Gender: Female
Birth Place: Switzerland
Home in 1860: Crescent, Del Norte, California
Post Office: Crescent City
Dwelling Number: 227
Family Number: 203
Married Within Year: Yes
Attended School: Yes
Household Members:
Name Age
J N Pein 40
Ann Pein 40
Johannah Pein 16
Charles Pein 15
Louis Pein 14
Emma Pein 13
Source Information

Ancestry.com. 1860 United States Federal Census [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2009. Images reproduced by FamilySearch.

Original data: 1860 U.S. census, population schedule. NARA microfilm publication M653, 1,438 rolls. Washington, D.C.: National Archives and Records Administration, n.d.
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Name: Johanna M. L. Ott
Age: 36
Birth Date: Abt 1844
Birthplace: Switzerland
Home in 1880: Nevada City, Nevada, California, USA
Street: Commercal Street
Dwelling Number: 86
Race: White
Gender: Female
Relation to Head of House: Wife
Marital status: Married
Spouse's name: Jas. J. Ott
Father's Birthplace: Switzerland
Mother's Birthplace: Switzerland
Occupation: Keeping House
Neighbors:
Household Members:
Name Age
Jas. J. Ott 52
Johanna M. L. Ott 36
Em. Pauline Ott 18
Eda Annie Ott 16
Emile J. Ott 13
Laura Cast Ott 9
Source Citation

Year: 1880; Census Place: Nevada City, Nevada, California; Roll: 70; Page: 25A; Enumeration District: 059