Anthony,
William J Holmes:
The first record I have is from the "Returns Relating to Pilots and Piloting" from 1895. William is attached to No5 Boat, the schooner "Criterion", aged 23 and a Boathand (Apprentice Pilot). The "Criterion" was built in 1854, as No 10, by Thos. Harvey & Sons of Ipswich. She was 74'5" long, 15'2" beam, 9'8" draft and 61grt. She became No5 in 1888, withdrawn in 1898 and sold to the Dunkirk Pilot Service. In 1900 he is attached to No 4 Steam Pilot Boat "David Fernie", aged 28 and is a 2nd class Pilot. (Restricted to a certain tonnage). The reason I say 'attached' is because that particular boat is his base. In order to pilot ships into Liverpool he would board the ship in question and assist in the navigation. Pilots are always contracted in an advisory capacity, hence the entry in the Ship's Log, 'TMO&PA', (To Master's Orders and Pilot's Advice).
In 1906 he is on No1 spb "Francis Henderson", aged 34 and a 1st class Pilot (any size of ship).
He was born on 4/2/1872 and entered the Pilot Service as a Boathand on 23/5/1891. He was licenced as a 3rd class Pilot on 28/7/1898.
Leslie Thomas Holmes born 21/12/1902, joined the Service as a Boathand on 9/7/1919 and became a Pilot on 7/4/1927. Any relation?
William Clifford Holmes, born 24/9/1905, joined the Service on 23/5/1922. Any relation?
James S Holmes in the "Returns" in 1870, aged 26, an Apprentice with a 500 ton licence attached to No 3 Boat, the schooner "Duke". Have you found a family link? In 1895 he was on No2 schooner "Leader".
Let me know if there is a link and I'll give you a bit more info
Regards
Dave