Source: Leicestershire War Memorials Project.
Coalville Times article - Friday August 16th, 1918
LOCAL CASUALTIES
Rev. L. H. Pearson, Vicar of Rothley, formerly headmaster of Market Bosworth Grammar School, has received news that his second son, Lieutenant Lewis Howel Pearson, Leicestershire Regiment, is reported missing. It appears that the gallant young officer (who had been awarded the Croix de Guerre with Palm) was sent on patrol duty with two men, and when last seen they were fighting, greatly outnumbered. He has been wounded three times. Before enlisting as a private in the Leicesters, when war broke out, Lieut. Pearson was a scholar of Emmanuel College.
Research undertaken and submitted by Andy Murby 21/9/2018

"A claim for damages for the death of the vicar of Rothley, who was killed in a collision at the Wanlip-road corner, the Fosse, Syston, last June, made against a char-a-banc proprietor at Leicester Assizes to-day. One of the witnesses to the accident stated that out of sympathy with the young char-a-banc driver he gave false evidence at the Inquest. Action, which was heard by Mr. THE Justice Branson and special jury, was brought by Lewis Howell Pearson, son of the late Rev. Lewis Henry Pearson, on behalf of his mother, Mrs. Mary Gertrude Pearson."
Leicester Mercury 5th February 1927, page 7

Served with the 1/5th Bn in World War One. Awarded Croix de Guerre (with palm). Wounded in 1915. Served as Battalion Intelligence Officer in 1916. Wounded again in 1917, and captured by the enemy in August 1918.
(Information from Tigers Regiment website, 'https://royalleicestershireregiment.org.uk/entity/113452-pearson-l-h?q=', accessed 04/10/24)

Photograph and information from S Bailey (24/08/24):
He appears to have survived the war and is named on his father's probate (Sept 1926). He became a vicar and emigrated to South Africa in 1937. He died on the 20th July 1965 at South Rand Hospital, Johannesburg. At one point he was Rector of St Martin's in the Veldt, Rosebank, Johannesburg, and was unmarried.