The first map of The Peak on which I have seen KNOCKLAYD clearly marked is a Road Map of the Peak District of 1954 digitally available at HKmaps.hk (other than the 'mention' on the 1924 map). This is a snippet of that map clearly showing the location of KNOCKLAYD (House No. 300) and its location on the south side of Bluff Path above Clavadel.
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KNOCKLAYD clearly shown on 1954 Map of The Peak (hkmaps.hk)
The first map of The Peak on which I have seen KNOCKLAYD clearly marked is a Road Map of the Peak District of 1954 digitally available at HKmaps.hk (other than the 'mention' on the 1924 map). This is a snippet of that map clearly showing the location of KNOCKLAYD (House No. 300) and its location on the south side of Bluff Path above Clavadel.