The service took place at Holy Trinity Church, in Hermitage, west Berkshire.
The crash happened on Saturday morning, just off junction 6 of the M4,
The 37-year-old rider suffered "life-changing leg injuries" in the crash near Reading Girls' School.
High pressure water and sand are applied to the tracks to remove "slippery" leaves.
The four images of Princess Eugenie and Jack Brooksbank were taken by photographer Alex Bramall.
Douglas John's family said he recently semi-retired to spend more time with his family.
One person was airlifted to hospital and 11 others suffered minor injuries in the minibus crash.
Live coverage of Saturday's National League game between Boreham Wood and Maidenhead United.
Three members of staff from the school died in the crash between a minibus and a lorry on the M4.
A man has been arrested on suspicion of attempted murder after a cyclist was struck by a car in Reading.
Darran Walker died of multiple injuries after hitting another car head-on on an M4 slip road.
Thousands are expected in Windsor later for the wedding of Princess Eugenie and Jack Brooksbank.
Two members of staff died and six other people from the school were injured in the crash on the M4.
Three other people suffered life-threatening injuries in the crash on the M4 in Berkshire.
Daniel McLaren denies murdering his four-month-old son Jack.
Preparations get under way ahead of the wedding of Princess Eugenie and Jack Brooksbank.
The deal represents one of Apple's biggest takeovers in headcount terms.
Providing security is likely to be one of the biggest expenses as Windsor hosts another big ceremony.
The crash, involving a Aprilia Dorsoduro motorbike and a Volvo, happened on the A327 in Eversley.
BBC News visited travellers on two sites to discuss councils spending thousands on clear-up costs.