H Karlene, I am not related and don't have further information on these people, but here are the parents of Ervin/Irvin Cook.Hope it will help.
Name: Geo. Cook Age: 41 Birth Year: abt 1839 Birthplace: Massachusetts Home in 1880: Cranston, Providence, Rhode Island Race: White Gender: Male Relation to Head of House: Self (Head) Marital Status: Married Spouse's Name: Harriet Cook Father's Birthplace: Rhode Island Mother's Birthplace: Rhode Island Occupation: Stone Mason Household Members: Name Age Geo. Cook 41 Harriet Cook 35 RIRIRI Geo. E. Cook 12 RIMARI Cook 1m Apr 1880 Son RIMARI
Home in 1900: Warwick, Kent, Rhode Island Name: Harriet Cook Age: 56 Birth Date: Jan 1844 Birthplace: Rhode Island Race: White Gender: Female Relation to Head of House: Head Marital Status: Widowed Father's Birthplace: Rhode Island Mother's Birthplace: Rhode Island Mother: number of living children: 3 Mother: How many children: 8 Household Members: Name Age Harriet Cook 56 Irvin Cook 20 Son Apr 1880 RIRIRI Well Digger