Answer by taking a quote from the following article:

The Carpenters were an American vocal and instrumental duo of Karen (1950-1983) and Richard Carpenter (b. 1946).  They produced a distinct soft musical style, combining Karen's contralto vocals with Richard's arranging and composition skills. During their 14-year career, the Carpenters recorded ten albums, along with numerous singles and several television specials. The siblings were born in New Haven, Connecticut, and moved to Downey, California, in 1963.

The Carpenter siblings were both born at Grace-New Haven Hospital (now called Yale-New Haven Hospital) in New Haven, Connecticut, to Harold Bertram (November 8, 1908 - October 15, 1988) and Agnes Reuwer (nee Tatum, March 5, 1915 - November 10, 1996). Harold was born in Wuzhou, China, moving to Britain in 1917, and the US in 1921, while Agnes was born and grew up in Baltimore, Maryland. They married on April 9, 1935; their first child, Richard Lynn, was born on October 15, 1946, while Karen Anne followed on March 2, 1950. Richard was a quiet child who spent most of his time at home listening to Rachmaninoff, Tchaikovsky, Red Nichols and Spike Jones, and playing the piano. Karen was friendly and outgoing; she liked to play sports, including softball with the neighborhood kids, but still spent a lot of time listening to music. She enjoyed dancing and began ballet and tap classes aged four. Karen and Richard were close, and shared a common interest in music. In particular, they became fans of Les Paul and Mary Ford, whose music featured multiple overdubbed voices and instruments. Richard began piano lessons aged eight, but quickly grew frustrated with the formal direction of the lessons and quit after a year. He had begun to teach himself how to play by ear by 11, and resumed studying with a different teacher. He took a greater interest in playing this time, and would frequently practice at home. By age 14, he was interested in performing professionally, and started lessons at Yale School of Music. In June 1963, the Carpenter family moved to the Los Angeles suburb of Downey. hoping that it would mean better musical opportunities for Richard. He was asked to be the organist for weddings and services at the local Methodist church; instead of playing traditional hymns, he would sometimes rearrange contemporary Beatles songs in a "church" style. In fall 1964, Richard enrolled at California State College at Long Beach where he met future songwriting partner John Bettis, Wesley Jacobs, a friend who played the bass and tuba for the Richard Carpenter Trio, and Frank Pooler, with whom Richard would collaborate to create the Christmas standard "Merry Christmas Darling" in 1966. That same fall, Karen enrolled at Downey High School, where she found she had a knack for playing the drums. She had initially tried playing the glockenspiel, but had been inspired by her friend Frankie Chavez, who had been drumming since he was three. She became enthusiastic about the drums, and began to learn complex pieces, such as Dave Brubeck's "Take Five". Chavez persuaded her parents to buy a Ludwig drum kit in late 1964, and she began lessons with local jazz players, including how to read concert music. She quickly replaced the entry-level kit with a large Ludwig set that was a similar set-up to Brubeck's drummer, Joe Morello. Richard and Karen gave their first public performance together in 1965, as part of the pit band for a local production of Guys and Dolls. CANNOTANSWER

who were their parents?

Harold Bertram (November 8, 1908 - October 15, 1988) and Agnes Reuwer (nee Tatum, March 5, 1915 - November 10, 1996).