Lieutenant Colonel Charles E. Ponsonby was first a Lieutenant and later a Major in the the Royal East Kent Yeomanry in WW1 and in 1920 as a Lieutenant Colonel he published a book called,
West Kent Yeomanry & 10th (Yeomanry) Battalion,The Buffs By Lt Col Charles Ponsonby
In that book he gave the following timeline for the unit.
42nd (East Lancashire) Division)...5th August 1914 Mobilized and concentrated at Maidstone
9th August 1914 - Arrived at War Station, Sturry, Fordwich and Westbere near Canterbury
April 1915 - Inspected by H.M The King
23rd September 1915 - Sailed from Liverpool on the SS Olympic (White Star Line) Troopship
HMT 2810, 2nd October 1915 - Arrived Mudros, 7th October 1915 Arrived Cape Helles, Gallipoli
31st December 1915 Left Cape Helles, 1st January Arrived Mudros,
5th February 1915 Arrived Sidi Bishr near Alexandria, Egypt,
16th March 1915 El Kubri (Suez Canal), 13th April 1915 Suez Canal,
18th May 1916 El Shatt (Suez Canal), 1st July 1916 El Ferdan (Suez Canal), 27th July 1916 Sidi Bishr, 6th August 1916 Marsa Matruh Western Front Egypt,
14th January 1917 Sollum Egypt Regiment to be disbanded
10th Battalion
1st February 1917 Almagamation of 1/1st West Kent Yeomanry with 1/1st Royal East Kent
Mounted Rifles, 16th March 1917 Sidi Bishr, 11th April 1917 Deir el Belah,
18th April 1917 Second Battle of Gaza (74th Division held in Reserve), 22nd April 1917 Tel-el-Jemmi
29th April 1917 Shellal and Hisea, 28th May 1917 Wadi Levi, 9th July 1917 Dorset House,
7th August 1917 Deir el Belah (fig grove), 28th August 1917 Sheikh Hamuda,
6th September 1917 Regents Park and Samson's Ridge near, Gaza, Egypt,
20th September 1917 Sheikh Hamuda, 25th October 1917 Abu Sitta, 28th October 1917 Tel el Fara
30th October 1917 Khasif, 31st October 1917 Battle of Beersheba, 1st November 1917 Wadi Saba
3rd November 1917 Muweileh, 6th November 1917 Battle of Sheria, 10th November 1917 Karm,
18th November 1917 St James Park, 23rd November 1917 Deir Seneid,
25th November 1917 El Mejel, 26th November 1917 Nahr Sukereir,
27th November 1917 Junction Station, 28th November 1917 Latrun,
29th November 1917 Beit Nuba (52 miles from St James Park)
2nd December 1917 New Kent Road, near Ammam ( which in 2015 = Jordan )
7th December 1917 Wadi Moya, near Kubeibeh, 8th December 1917 Battle of Jerusalem,
9th December 1917 Beit Iksa, 15th December 1917 Beit Hanina, 21st December 1917 Wadi Moya,
27th December 1917 Beit Izza, 29th December 1917 Ramallah captured (now West Bank of Israel),
3rd January 1918 Beit Izza, 5th January 1918 Beit Likia, 9th January 1918 Beit Sira,
18th February 1918 Kurbeha Ibn Harith, 4th March 1918 Balua Lake, near Ramallah,
9th to 12th March 1918 advanced towards Nablus, Yebrud and Burj Badawile occupied,
13th to 26th March 1918 Turmus Aya outpost line, 7th April 1918 Burj Badawile, leaving Palestine, 8th April 1918 Near Beitunia, leaving Palestine, 9th April 1918 Beit Sira, marching to leave Palestine,
10th April 1918 Kubub, 11th April 1918 Sura Fend, near Ludd, 14th April 1918 Kantara,
1st May 1918 sailed frpm Alexandria, Egypt,
7th May 1918 arrived Marseilles, France, 11th May 1918 Foret L'Abbaye, 22nd May 1918 Buneville,
25th May 1918 Izel-les-Hameau, 25th June 1918 Enquin les Mines, 10th July 1918 Ham in Artois,
11th July 1918 La Pierriere, 23rd July 1918 La Miquellerie,
4th August to 24th August 1918 Operations in Merville Sector, Collone St Floris, St Venant,
24th August 1918 La Pierriere, 26th August 1918 Cotes,
29th August 1918 Entrained at Lille and arrived Heilly, near Amiens, 31st August 1918 Maricourt,
1st to 24th September 1918 advanced towards the Hindenburg Line,
25th September 1918 Aubigny, Villers Bretonneaux, 27th September 1918 Heilly,
28th September 1918 Allouayne, 1st October 1918 Basse Rue, 8th October 1918 Lattre,
11th October 1918 Near Sainghin, 13th October 1918 Fournes,
16th October 1918 Quinquibus Farm, 18th October 1918 Wattignies, 19th October 1918 Engrain,
20th October 1918 Baisieux, 25th October 1918 Orcq, 29th October 1918 Marquain,
30th October 1918 Hertain, 8th November 1918 Faubourg-de-Lille,
9th November 1918 entry into Tournai,
11th November 1918 hostilities ceased, moved to Montreuil-au-Bois, 12th November 1918 Escalette
14th November 1918 Herquecies, 18th November 1918 Barry,
7th December 1918 Visit of H.M The King, 15th December 1918 Fresnes,
17th December 1918 Thollembeek and Vollezeel, Belgium,
26th January 1919 Review at Brussels, Belgium by H.M The King of Belgians,
27th February 1919 Grammont, 17th June 1919 Consecration of Colours at Canterbury,
21st June 1919 Colour handed for safe custody to the Dean and Chapter of Canterbury,
21st June 1919 10th (Yeomanry) Battalion, The Buffs DISBANDED