The 1970 picture is of Iory (Iowerth) Jones. Usually he was seen with a thinning head of hair but occasionally earlier in his career with a full head of hair and one imagines he had some temporary "enhancement" in that area - he wasn't the only referee to do so in that era.
F.M. (Ricky) Nicholson of Manchester was said to be another and in fact I believe there was a report that it once blew off during a match. He was also famous for driving to matches in his Rolls Royce.