One-hit wonders?

No! These were Procol Harum's UK chart singles. But they were
one-year wonders: all the top-thirty hits were written in 1967

Data (from 1977's Guinness Book of British Hit Singles) based on weekly chart
compiled for Record Retailer and BBC by British Market Research Bureau

More Procol chart-data
Pages devoted to A Whiter Shade of Pale
John Peel rationalises mystifying chart disappointment of A Salty Dog single
A Salty Dog single review

You might expect the press in Southend, if anywhere, to know that Procol had more than one hit: but the Southend Evening Echo still hadn’t figured that out on Tuesday 21 October 2003:

Thundersley: Drumming up cash for charity

The drummer of 1960s one-hit wonder band Procul [sic]Harum has played in Thundersley to raise money for charity.  Bobby Harrison was the beat man for the band who shot to fame with A Whiter Shade of Pale.

He now fronts Christian group, Journey, and plays at venues throughout the country.

The band's latest gig was at St Peters Church, Church Road, Thundersley, and raised cash for Eastern European families. A crowd of more than 70 enjoyed the night and helped increase funds to pay for clothing parcels to be sent directly to poor families.

Organiser Nicole Dingle said: "We filled the hall and everyone sat down for a ploughman's dinner."

The concert started at 7pm on Saturday and raised in the region of £200 for the St Peter's Aid to Eastern Europe fund.