The original Norman church (built c.1130) was heavily altered in a 1886-7 'restoration' project by prominent local architects Paley and Austin, which also installed a pulpit, pews and stalls by Waring and Gillow.
I presume it's coincidental that both this church and St. Mary's in Kirkby Lonsdale, the next town down the valley, have diamond-shaped clocks, itself an unusual design.

George Fox spoke here in 1652, immediately before his influential sermon on Firbank Fell.