Shropshire Light Infantry?

The tall soldier in the back row, third from the right, is Septimus Frederick Nicholson. Septimus married Dad’s Aunt Clara (nee Whipp). Septimus joined the Shropshire Light Infantry as a Private. His number was 32136. He later transferred to the 2nd Battalion of the South Wales Borderers as a Lance Corporal. Here his number was 40753. I believe the photograph, above, is of the Shropshire Light Infantry.

Septimus, (what a wonderful name!) served in France and Flanders where he was killed in action on Tuesday, 31 July 1917. He is remembered on the Ypres (Menin Gate) Memorial in Belgium, on Panel 22.

Septimus and Clara had three children. Jessie was born in 1907 and died in 1913. Harold was born in 1909 and died in 1912. Mary Elizabeth was born in 1912, but she also died as a child, in 1919. I recall my mother telling me that one of the girls died from a childhood illness and the other after eating poisonous berries. I cannot recall which. Mary Elizabeth and my Dad, Ronald Halstead, were great childhood friends.

Q. Is this the Shropshire Light Infantry?
Q. Does anyone know who these men are?
Q. Who would have taken this photograph, and where?