Rachel Lindsay Rene Bush and Sidney Robyn Danae Bush born May 25 1970 Los Angeles are American former child actresses best known for their combined alternating role as Carrie Ingalls in the drama series Little House on the Prairie They are identical twin sisters born to actor Billy Green Bush and Carole Kay Bush Their older brother Clay is also an actor Prior to Little House on the Prairie debuting on September 11 1974 they starred in the madefortelevision drama Sunshine 1973 as Jill Hayden In 1978 in the seasonfive Little House episode The Godsister the sisters are shown together playing different characters The twins final appearance on the series was on May 10 1982 In the final season their absence was explained by the family except Laura moving to Burr Oak Iowa to pursue a promising life Several months later the series was cancelled The opening credits of the series showed one of the twins running in a meadow behind the credit Lindsay Sidney Greenbush leading many viewers to believe it was one actresss full name During the course of the series Sidney had broken her arm several times and it was in a cast Lindsay did most of the scenes as Carrie In 1983 Lindsay guest starred in a Matt Houston episode as an abuse victim Sidney starred in the film Hambone and Hillie in 1983 The twins starred in commercials for among others Doublemint gum Mattel Toys and Kentucky Fried Chicken The twins decided to retire from acting and continue their studies at public school They graduated from Santa Monica High in 1988