Off the top of my head, it could be revised as follows . . . .
While Hugh I. Wilson is credited with designing the great Merion East course that opened in 1912, he did not plan neither determined the original basic layout or nor did he conceive of the original holes. H.H. Barker first sketched out a routing the summer of 1910, but shortly thereafter Barker’s plans were largely modified or perhaps even completely replaced pursuant to by the advice provided by the famous amateur golfers, C.B. Macdonald and H.J. Whigham who provided their written opinion of what could be done with the land. Richard Francis and H.G. Lloyd of Merion also contributed to the routing plan. After the course was preliminarily planned and land finally purchased secured, Merion appointed Hugh Wilson and his “Construction Committee” to build the golf course in early 1911. Wilson was in contact with Macdonald almost immediately, and in March 1911, the month before construction would begin, the Construction Committee departed for NGLA so that Macdonald and Whigham could teach them how to lay out and build the golf holes at Merion East. After reviewing Macdonald's plans and working with Macdonald and Whigham for two days, Wilson and his Committee returned to Merion and rearranged the course based upon what they had learned, and came up with five different plans. A few months weeks later, just before Merion began major construction, Macdonald and Whigham again visited Merion to reinspect the site and choose a final routing plan. After inspecting the various versions as set out by the Committee, Macdonald and Whigham approved a final layout plan, which was then presented to the board as the plan Macdonald had approved. further helped Wilson and his Committee with the plans. In the spring and summer of 1911, Wilson and his Committee built the golf course, leaving many of the hazards to be built later. In the spring of 1912, Wilson traveled abroad to study the great golf holes and to get ideas for the course. He continued to work on the course for years to come. Whatever our modern impressions of the singularity of Merion’s original design, multiple reports indicated that the concepts for at least some of the original holes were derived from great golf holes abroad. At least one report indicated, “Nearly every hole is patterned after some famous hole abroad.” Other contemporaneous commentators singled out the famous “Redan” and “Alps” holes, noting that each inspired a hole at Merion. While my research is in the early stages, my preliminary view is that many of the original holes at Merion East were based upon the conceptual underpinnings of the great holes, as understood by Macdonald and Whigham.