Many of the events described in the book , actually happened to either her parents ( Laura Ingalls Wilder and Almanzo Wilder ) , or her grandparents ( Caroline and Charles Ingalls ) .
Head entity: charles ingalls Q1064974 30 31
Tail entity: laura ingalls wilder Q237514 16 17 18
Relation (head \u2192 tail): P40
Inverse relation (tail \u2192 head): P22