My source, Ray Wagner's "American Combat Planes", list the Camel F-1 with 130 hp Clerget 9-bc engine with a top speed at 113 mph at 6500', 106.5 (??) mph at 10000', and a service ceiling of 19000'.
"The Illustrated Directory of Fighters", by Spick says, for the same plane, a top speed of 115 mph at 6500', and 113 mph at 10000'
I am sure both are well within the measurement and manufacturing error of WW I, so you don't need to get too serious about accuracy. Take an average.