Two daughters and one son in the 1880 US Census. Sometimes middle initials can be difficult to discern depending on the writing clarity of the census taker.
George H Porter
United States Census, 1880
Name: George H Porter
Event Type: Census
Event Year: 1880
Event Place: Winchendon, Worcester, Massachusetts, United States
Gender: Male
Age: 29
Marital Status: Married
Race: White
Race (Original): W
Occupation: Works In Cotton Mill
Relationship to Head of Household: Self
Relationship to Head of Household (Original): Self
Birth Year (Estimated): 1851
Birthplace: New Hampshire, United States
Father's Birthplace: New Hampshire, United States
Mother's Birthplace: New Hampshire, United States
Affiliate Name: The U.S. National Archives and Records Administration (NARA)
Affiliate Publication Number: T9
Affiliate Film Number: 0566
Household Role Gender Age Birthplace
George H Porter Self M 29 New Hampshire, United States
Edgar F Porter Son M 5 New Hampshire, United States
Martha W Porter Daughter F 3 New Hampshire, United States
Mary A Porter Wife F 30 New Hampshire, United States
Cora M Porter Daughter F 1 New Hampshire, United States