‘Adam’ fell on December 2nd, 1911. “The Wiltshire Archaeological Society decided to re-erect the stone, with the object of averting from it, as far as may be, a fate similar to that which befell the third member of the group*, on the principle that a stone standing is more likely to be respected than one fallen.”
Mr. and Mrs. B. H. Cunnington with their two labourers found various sarsen packing stones in the hole, with a herringbone-patterned beaker and the remains of a skeleton close by.
108. The Discovery of a Skeleton and “Drinking Cup” at Avebury
M. E. Cunnington
Man > Vol. 12 (1912), pp. 200-203
Also now here
archive.org/stream/wiltshirearchaeo38wiltuoft#page/n13/mode/2up