To prove the abilities of Arabians, he organized and participated in a number of endurance races of up to 300 miles (480 km), which his horses won three times, retiring the U.S.

Today, the term "CMK", meaning "Crabbet/Maynesboro/Kellogg" is a label for specific lines of "Domestic" or "American-bred" Arabian horses, many of which descend from Brown's breeding program.

[9] Fielding also earned a Ph.D. at Princeton University and returned to Williams as the Charles L. MacMillan Professor of Physics before retiring to become an artist and sculptor.

[10] Daughter Frances married Nobel Prize–winning physicist Charles H. Townes and wrote a book, Misadventures of a Scientist's Wife, about her life.

[9] Politically aligned with the Republican party, W. R. Brown was a presidential elector for New Hampshire in the 1924 election, voting for Calvin Coolidge.

[13] The corporation's name was changed to the Brown Company in 1917, removing the word "Berlin" because of the conflict with Germany in World War I.

His father, declaring he "wanted no kittens that couldn't catch mice," made W. R. find a job without family help.

In that position, he developed a method of using exhaust steam to heat a pond that thawed and cleaned logs, speeding up mill production during the winter.

"[19] His father, who had been out of town on the day of the record attempt, reviewed the results, inquired as to the amount of cut lumber that was actually shipped to customers, and then commented, "Hum, that was good.

[21] At its peak, the company owned, and Brown supervised, 3,750,000 acres (1,520,000 ha), as many as 40 logging camps, plus an inland fleet of more than 30 boats.

[23] The Brown family was later described as "progressive and ... ahead of their times", and had innovative ideas about wood products manufacturing and scientific forest management.

[25][26] Brown understood that the pulp mills of his time were dependent on locally accessible timber, and concluded that sustainable practices were important to the industry.

[1] He also attempted to improve camp conditions for the workers by banning card games and requiring the loggers to take showers, but those particular reform efforts "were not well received.

Various family members started a public kindergarten, built a community club with a gym, swimming pool, and bowling alley, provided soup to the sick, and gave Christmas presents to local children.

[22] Brown himself helped found a number of civic and business self-help organizations including the Society for the Protection of New Hampshire Forests, established in 1901;[32] the New Hampshire Timberlands Owners Association, a fire-protection group established in 1910;[19][28][33] and similar fire-protection groups in Maine and Vermont.

[42] The Brown family had borrowed heavily during the 1920s to fund expansion, and, as stated by a company employee, had become "complacent and overly optimistic."

[43] Family members sold off personal holdings to try to keep the company solvent, and W. R. Brown dispersed his entire herd of Arabian horses.

[46] When he started Maynesboro, Brown obtained his original foundation bloodstock from his oldest brother, Herbert, who had purchased *Abu Zeyd,[b] a stallion bred by the Crabbet Arabian Stud in England.

[61][62] Brown also obtained Borden's extensive collection of literary works on horsemanship, Arab culture, and the Arabian horse, which included 8th-century Furusiyya manuscripts.

Through an agent, Brown purchased 20 Crabbet horses in 1918, although for reasons unknown, only 17 actually made it to Maynesboro; he paid only £2727 for the entire lot.

[64][c] The most significant animal purchased was the well-known stallion *Berk, who died in America after siring only four foals, much to the dismay of Lady Wentworth, who was trying to buy back the best breeding stock lost to Crabbet because of her father's actions.

[68] Brown traveled to Europe with the U.S. Army Remount Service in 1921, visiting a number of major European studs in Austria, France, and Hungary.

[75] In 1918, Brown set up a test ride in which he had two of his horses travel from Berlin to Bethel, Maine, a distance of 162 miles (261 km).

They completed the ride in just over 31 hours including breaks; each horse carried a rider and equipment weighing 200 pounds (91 kg) in poor weather and on muddy roads.

Both horses were examined by a veterinarian, assessed as being sound and fit to continue at the end of the ride, and showed no evidence of soreness 24 hours later.

A third Arabian, Herbert Brown's *Crabbet, was ridden by a military officer supervising the test, and that pair covered 95 miles (153 km) in seventeen hours.

[76] Following the 1918 test, Brown helped organize the first U.S. Official Cavalry Endurance Ride in 1919, which was won by his mare Ramla, who carried 200 pounds (91 kg).

[78] In 1921, with a weight requirement of 225 pounds (102 kg),[77] again covering 300 miles (480 km) in five days, Brown's gelding *Crabbet won the race and Rustem Bey placed third,[78] despite a donation of $50,000 from The Jockey Club to the Army to buy the best Thoroughbreds possible in a failed attempt to beat the Arabians.

[53] Dickinson in turn sold *Zarife to Wayne Van Vleet of Colorado in 1939,[72] and Azkar, the last foal bred by Brown,[8] to a ranch in Texas.

It describes the descendants of horses imported to America from the desert or from Crabbet Park Stud in the late 1800s and early 1900s and then bred on in the US by the Hamidie Society, Huntington, Borden, Davenport, Brown, W. K. Kellogg, Hearst, or Dickinson.