Source for dates and place of burial:

http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=oliphant&id=I8084

Her full name was Martha Stackhouse Garrigues/Garrigus Wickersham, but Find A Grave doesn't permit the full name at the top of the memorial.

1st husband: Charles Garrigues/Garrigus (born c. 1821-1822; buried where?)

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Martha Garrigus
United States Census, 1850
Name Martha Garrigus
Event Type Census
Event Year 1850
Event Place West, Columbiana, Ohio, United States
Gender Female
Age 29
Race White
Birth Year (Estimated) 1821
Birthplace Ohio
House Number 378
Charles Garrigus M 29 Pennsylvania
Martha Garrigus F 29 Ohio
Mary Garrigus F 7 Ohio
Tacy Garrigus F 4 Ohio
Benj Garrigus M 2 Ohio

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Martha Garrigues
United States Census, 1860
Name Martha Garrigues
Event Type Census
Event Date 1860
Event Place West Township, Columbiana, Ohio, United States
Gender Female
Age 39
Race White
Race (Original) [Blank]
Birth Year (Estimated) 1821
Birthplace Ohio
Page 210
Charles Garrigues M 38 Maryland
Martha Garrigues F 39 Ohio
Mary Garrigues F 16 Ohio
Tacy Garrigues F 13 Ohio
Benj Garrigues M 11 Ohio
Henry Garrigues M 8 Ohio
Ann Garrigues F 4 Ohio

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Martha Garragues
United States Census, 1870
Name Martha Garragues
Event Type Census
Event Year 1870
Event Place Ohio, United States
Gender Female
Age 49
Race White
Race (Original) W
Birth Year (Estimated) 1820-1821
Birthplace Ohio
Page Number 23
Martha Garragues F 49 Ohio
Benjamin Garragues M 21 Ohio
Henry Garragues M 18 Ohio
Anne Garragues F 14 Ohio

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Martha Wickersham
United States Census, 1880
Name Martha Wickersham
Event Type Census
Event Date 1880
Event Place West, Columbiana, Ohio, United States
Gender Female
Age 59
Marital Status Married
Race White
Race (Original) W
Occupation K. House
Relationship to Head of Household Wife
Relationship to Head of Household (Original) Wife
Birth Year (Estimated) 1821
Birthplace Ohio, United States
Father's Birthplace Pennsylvania, United States
Sheet Letter D
Sheet Number 728
Person Number 1
Volume 1
Eli Wickersham Self M 74 Pennsylvania, United States
Martha Wickersham Wife F 59 Ohio, United States
Grannill B Wickersham Son M 32 Ohio, United States

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Martha Garrigues
mentioned in the record of Eli Wickersham and Martha Garrigues
Name Eli Wickersham
Spouse's Name Martha Garrigues
Event Date 14 Aug 1873
Event Place Columbiana, Ohio

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Martha G. Wickersham
Ohio, County Death Records
Name Martha G. Wickersham
Event Type Death
Event Date 04 Feb 1897
Event Place Hanover Township, Columbiana, Ohio, United States
Residence Place Hanover Tp
Gender Female
Age 76
Marital Status Widowed
Race (Original) white
Occupation Housekeeper
Birth Year (Estimated) 1821
Birthplace Hanover Tp

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Many thanks to fellow Find A Grave contributor Jack for his help with this memorial.