Mr. Crosson was found as W. Harvey and Harvey W.

U.S., Civil War Soldier Records and Profiles, 1861-1865 about William H Crosson
Name: William H Crosson
Residence: Illinois
Enlistment Date: 23 Apr 1861
Rank at enlistment: Private
State Served: Illinois
Survived the War?: Yes
Service Record: Enlisted in Company D, Illinois 1st Cavalry Regiment on 15 Jul 1861.Mustered out on 14 Jul 1862.
Sources: Illinois: Roster of Officers and Enlisted Men

From Contributor Julia Johnson:

William Harvey [or Harve William] . . . was born at Blanchester, Ohio, in 1833 and in 1855, when a young man of twenty-two years, became a resident of Abingdon, Illinois, where he was married in 1856 to Miss Asenath Vinsonhaler. He engaged in farming until the outbreak of the Civil war, when he enlisted in defense of the Union as a member of Company D, First Illinois Cavalry. He participated in the battle of Lexington, Missouri, was captured by Price, and paroled in 1865. Later he crossed the plains with other gold seekers but after a year returned to Knox county, where he followed farming until 1873. In that year he brought his family to Taylor county, Iowa, and made his home upon the farm in Ross township until his death, which occurred in August, 1894. -History of Taylor County, Iowa: from the earliest historic times to 1910 by Frank E. Crosson. Chicago, The S.J. Clarke Publishing Co. 1910

(biographicals transcribed by Linda Kestner)

Taylor County Democrat (Bedford, Iowa), Thursday, August 30, 1894, p. 4
Harve Crosson Killed.
Harve Crosson met with a sudden death on last Thursday evening at the home of J. Dixson in Ross Township. Crosson had been attending the reunion and at its close, late on Thursday evening, rode home with Dixon in a wagon. While helping to unhitch the team, the horse Crosson was holding became frightened and jumped forward, striking him in the face with such force as to knock him to the ground. In passing over the prostrate body, it is thought the horse must have tramped upon his left breast just over the heart, breaking two ribs. Dixon called in several of his neighbors and a doctor was summoned but after about one hour of intense suffering the injured man became unconscious and soon breathed his last.

The funeral services were held at the residence on Saturday at 2 p. m. and the remains were interred in the New Hope cemetery at Allison, Mo.

The deceased was a veteran of the late war and was a generous man, his weakness being a love for the intoxicating bowl.
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The death notice states that he was buried in New Hope Cemetery, just across the Iowa/Taylor Co. line in Nodaway Co., Missouri, a few miles east of Hopkins, Missouri.

We have photographed New Hope Cemetery and did not find a marker for him there. Nor were we able to find a marker for him in Bedford Fairview. He is not listed in the Tombstone Record for Taylor County, Iowa as being buried in Bedford Fairview. Wherever he is, he must not have a marker or it has disappeared. His wife, who married again, is supposed to be buried in Bedford Fairview but there is no marker for her there or in New Hope. His only son, Frank Emery, is buried in Bedford Fairview and has a marker.

A little mystery here. He lived in Ross Township, south of Bedford, and many people in that area were buried in New Hope or Hopkins.
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From another Find a Grave Contributor:
The death records in Taylor County say that he was buried in Hoover Cemetery. Now that could mean the old Hoover Cemetery or Forest Grove Cemetery. Wherever he is - he doesn't have a marker.
Crosson, W.H., male, white, 63yr, farmer, died 23 Aug 1894 Ross twp, born Illinois, buried Hoover cemetery