Rachel Lindsay Rene Bush and Sidney Robyn Danae Bush were born May 25, 1954, in Hollywood, California, to Billy Green Bush and Carole Kay Bush. From 1974 to 1982, the identical twins played the character of Carrie Ingalls on Little House on the Prairie under the credit "Lindsay Sidney Greenbush". After Little House on the Prairie was canceled, Sidney appeared in a movie called Hambone and Hillie. Lindsay made a guest appearance in a "Matt Houston" episode called "Butterfly". She also auditioned for the main part in "Return to Oz" but lost the part to Fairuza Balk because the director thought she was too old for the part. Lindsay and Sidney have not done any acting since they were teenagers.
Today, Lindsay is single and has a daughter, Katlynn Danae (born 1995). In addition to acting, she has many other interests and pursuits, including as an amateur boxer, having competed in her first bout on August 4, 2007. In addition, she is actively involved with Kids Gloves Boxing Studios in Simi Valley, CA working with kids and adults. Kid Gloves Boxing Foundations mission is to teach the children to Conceive, Believe, and Achieve in an effort to keep them off the streets and away from negative influences such as gangs and drugs. She is also currently studying for her personal trainer certification and has made plans to go back to college to pursue a major in athletics.
Sidney is married to Rocky Foster and lives in central California. In addition to acting, she is staying active with her love of horses, having entered her horses in many various local and statewide competitions. She has also put together a line of original designer jewelry that she sells to her fans which can be seen on the official fan website.
In 2009, Sidney was asking for a divorce from her husband. A little after two hours, he committed suicide.