The line was upgraded in 1901 and from 1 October that year was used by some expresses;
the greater mileage was compensated by an easier exit from Leeds which avoided conflict with the Midland Railway
to quote Martin Bairstow in Railways through Harrogate ISBN 978-1-871944-49-5 published 2022.
The 1910 Bradshaws is referenced as showing uisng the route the 10.10am and 2.35pm from Harrogate to Kings Cross, the 10:10am being a Lucheon Car Express starting from Ripon, and three locals taking that route along with the 1.40pm and 3pm from Kings Cross plus two Liverpool-Newcastle via Stockton services.
In Railways around Harrogate Vol.1 by the same author published 1986 & 1989 (ISBN 1 8719444 00 7) the 18 July to 11 Sept 1932 timetable is shown with a 7.30am, 3.40pm and 4.05pm from Leeds New all calling at Wetherby and Spofforh only, and a 9.30am from Harrogate calling at Wetherby only. Also calling all stations a 7.15pm from Leeds and 6.50am, 1.50pm and 4.30pm from Harrogate. The 7.30am from Leeds took 45 minutes and the 7.15pm 54 minutes. From Harrogate the 6.50am took 53 minutres and the 9.30am 37 minutes. No indication is given of the services commencing or continuing outside of the timetable.
In The Railways of Harrogate and District by James Rogers (North Eastern Railway Association 2000 ISBN 1 873513 33X) it is noted that three trains from Leeds in 1959 ran non stop along the route; the 3.57pm to Ripon, 5.50pm to Thirsk and 10.50pm to Harrogate. It is stated that was as
the night shift was withdrawn from signal boxes on the Leeds-Harrogate, via Arthington, route
but if that was the case surely more trains would have been so routed and would 3.57pm have been night shift?