Tommy grew up in Maryland at Al-Mariah Farm, one of the nation’s leading Arabian breeding farms. Tommy learned to ride and showed as a youngster on some of the best Arabians in the country. He gained his horse sense from his father, Wilson, and his knowledge of general horse health from Dr. Courtwright, the vet for Al-Mariah Farm.

At age thirteen, Tommy started playing polo. After serving in the U.S. Army, Tommy returned home and renewed his interest in polo. He groomed for Nordy Knox, one of the top polo players on the East Coast. They traveled to South America where Tommy played with top polo players in Argentina.

In 1972 Tommy opened the Hidden Valley boarding stable in Maryland. He grew the property from eighteen to forty stalls by the time he sold the property in 1980. Tommy went on to own a barn building and fencing business.

From 1990 to 2002, Tommy managed the 54-stall boarding facility at Hedgeland Stable. During this time he was introduced the sport of team penning by a fellow polo player. After only one year of competing, Tommy was ranked as an open rider. He has won team penning competitions from New York to Virginia since 1994. He held team penning competitions and clinics from the local to regional level at Hedgeland Stable. He also sponsored the first team pennings held at the Washington International Horse Show and the Montgomery County Fair.

Chelsea has been around horses from the time she could walk. At age five, she was showing in the local leadline classes. By nine she had won the Pre-Short Stirrup Year End Award at Mark Wonderly's show series held at Morvan Park. Chelsea branched out into western riding and joined the Catoctin Vaulting Club in Leesburg, Virginia.

In 1994, Chelsea rode in the first team penning ever held during the Washington International Horse Show. She rode with her grandfather, Wilson, and her dad, Tommy. Her team represented three generations of the Magahas. The next year she won two belt buckles, which sparked her competitive nature. Chelsea has won many buckles and a total of eight trophy saddles as a result of winning the most money in the different divisions on the United States Team Penning Association (USTPA). In 1998 Chelsea had the distinction of being the only junior rider to ever qualify for all five divisions offered at the USTPA finals, including the Open (against professional riders), the Pro-Am, Novice, Senior Youth and Youth Divisions.

Chelsea graduated from Loudoun Valley High School in 2002. She continues to team pen while attending college. Chelsea is now also avid barrel racer.

At the age of seven, Megan began competing with her family in team penning competitions. Over the years, Megan has won belt buckles in all divisions. In 1999 she won two trophy saddles in the Jr. Youth and Novice divisions. That same year, her family qualified to go to Texas for the USTPA National Finals. At the finals, Megan was 6th out of 75 teams in the Jr. Youth.

Megan graduated from Clarke County High School in 2005 and will pursue massage therapy.