Harry Kane and Andy Keogh fired the hosts to victory on an emotional afternoon at The Den.
Kane’s first-half header and Keogh’s late penalty proved enough to see off Hull on the day the Lions said farewell to club legend Barry Kitchener, who died a week ago aged 64.
A service and minutes’ applause were held before the game, in which Millwall wore special white kits in memory of their former centre-half.
They then went on to stage the most fitting tribute possible with a battling display one-club ‘Kitch’ would have been proud of.
Kane and Keogh’s goals eased Millwall’s relegation fears and secured the Lions’ 1,000th home league win, a milestone they had been trying to reach since their last success on Boxing Day.
Crawley will continue to assess Dutch striker Thomas Verheydt ahead of the Sky Bet League Two match against Morecambe.
Former England manager Steve McClaren has distanced himself from reports linking him to the Oxford job.
Tommy Wright has admitted that St Johnstone's top-six aspirations are all but over following Wednesday's defeat to Kilmarnock.