Married to Julia Ann Walter around 1847.

Hiram and Julia were the parents of:
Charles Walter McCoy
Matilda A Mccoy(1851-unk)
Clara I Mccoy(1853-unk)
Ida Ann McCoy
Rosetta McCoy(1859-unk)
Robinson William Mccoy(1863-unk)
Elizabeth P Mccoy(1867-unk)
Lillian McCoy Morrell
Kizzie McCoy
*********************************
1850 United States Federal Census
Name: Hiram Mc Ay
Age: 25
Estimated birth year: abt 1825
Birth Place: Pennsylvania
Gender: Male
Home in 1850: Milford, Somerset, Pennsylvania
Family Number: 201
Household Members: Name Age
Hiram Mc Ay 25
Julia Mc Ay 22
Chas W Mc Ay 2
Abram Mcadams 21

1860 United States Federal Census
Name: Hiram Mccoy
Age in 1860: 36
Birth Year: abt 1824
Birthplace: Pennsylvania
Home in 1860: Jefferson, Somerset, Pennsylvania
Gender: Male
Post Office: Benfords Store
Household Members: Name Age
Hiram Mccoy 36
Julia Mccoy 32
Charles Mccoy 11
Matilda Mccoy 9
Claura Mccoy 7
Ida A Mccoy 4
Rosetta Mccoy 10/12
Bernard Grady 65

1870 United States Federal Census
Name: Hiram D Mccoy
Birth Year: abt 1825
Age in 1870: 45
Birthplace: Pennsylvania
Home in 1870: Jefferson, Somerset, Pennsylvania
Race: White
Gender: Male
Post Office: Lavansville
Household Members: Name Age
Hiram D Mccoy 45
Julia Mccoy 43
Walter C Mccoy 21
Matilda A Mccoy 19
Clara I Mccoy 15
Ida A Mccoy 13
Rosetta Mccoy 11
Robinson W Mccoy 7
Elizabeth P Mccoy 3

1880 United States Federal Census
Name: H D Mccoy
Home in 1880: Jefferson, Somerset, Pennsylvania
Age: 53
Estimated birth year: abt 1827
Birthplace: Pennsylvania
Relation to Head of Household: Self (Head)
Spouse's name: Julia
Father's birthplace: Pennsylvania
Mother's birthplace: Pennsylvania
Occupation: Farmer
Marital Status: Married
Race: White
Gender: Male
Household Members: Name Age
H D Mccoy 53
Julia Mccoy 52
Ida Mccoy 22
Robison Mccoy 16
Elizabeth Mccoy 12
Kizzie Mccoy 9

Kansas State Census Collection, 1855-1925
Name: Hiram D McCoy
Census Date: 1 Mar 1885
Residence County: Miami
Residence State: Kansas
Locality: Osage
Birth Location: Pennsylvania
Family Number: 1
Marital Status: Married
Gender: Male
Estimated birth year: abt 1827
Race: White
Line: 1
Roll: KS1885_88
Household Member(s): Name Age
Hiram D McCoy 58
Julia A McCoy 56
Ida A McCoy 26
Lilly McCoy 16
Robert McCoy 20
Kizzie C McCoy 13

1900 United States Federal Census
Name: D Hiram Mccoy
Home in 1900: Osage, Miami, Kansas
Age: 74
Birth Date: Feb 1824
Birthplace: Pennsylvania
Race: White
Gender: Male
Relationship to Head of House: Father
Father's Birthplace: New York
Mother's Birthplace: New York
Marital Status: Widowed
Household Members: Name Age
Har* Morrell 35
Lillian Morrell 29
Frank Morrell 11
Harry Morrell 7
Hilda Morrell 4
D Hiram Mccoy 74
*********************************
Pennsylvania, County Marriages, 1885-1950
Name: William R. Mccoy
Event Type: Marriage
Event Date: 04 Aug 1897
Event Place: Pennsville, Fayette, Pennsylvania, United States
Age: 32
Birth Year (Estimated): 1865
Father's Name: Riram D. Mccoy
Mother's Name: Julia A.
Spouse's Name: Mary Lou Boyd
Spouse's Birth Year (Estimated): 1869
Spouse's Father's Name: Richard
Spouse's Mother's Name: Maria W.
Reference ID: p 422 cn 7693 , GS Film Number: 1318037 , Digital Folder Number: 004460682 , Image Number: 00474