00-70 Love Is Like A Crescendo/Song Abot The Time - Fontana TF 1068 (UK)
The only thing that I found on the internet about Merrick-Evans is the release of the above mentioned single.
The b-side "Song About The Time" is written by Merrick-Evans.
Not one more word can be found. Has anybody else more information about this singer (or is it a duo ?).
Cliff Richard recorded "Love Is Like A Crescendo" in 1969, but only released it in 2008.
Recently (2011) I also found this song by a Dutch group called Rowdies (see there), who also released it as a single in 1969.