Mike,
No one is making the leap that the triangle on the map is 130X190 so why debate the exact length of the 130 (or 110, or 95) yards when the big issue in Bryan's measuring is the 124 acres enclosed on that map which you have repeatedly insisted was to scale at 117 acres.
Jim,
Great question, but I'm not the one who is contending that the area demarcated on the map in green is the 117 acres Merion had secured for their golf course on what is clearly a scale map. Merion said it was 117 acres, multiple times, in the letter accompanying that "Plan", as they called it.
Drawn on that map as well is what is today Golf House Road, clearly intended to be the boundary between golf course and real estate even back then. Because it didn't yet exist (because we know from Cuyler's letter over a month later that the golf course had not been definitely located and the boundary hadn't yet been determined), it was identified as "Approximate Location of Road".
Yet as you say, no one can say that the area in question at the top of the map is 130x190, which were the dimensions that Richard Francis told us he exchanged land for, and what the course is built to even today. In fact, it was much narrower and much longer.
What does that tell you? What does the fact that the golf course portion of the "plan" actually measures 124 acres and not 117 acres at that point in time tell you? What does that tell you about the state of the "planning" effort to date.
This wasn't some old map drawn during initial discussions. This was a hot-off-the-press, up-to-date, same day still cooling from the printer representation of the state of things as of November 15, 1910 and mailed excitedly to the Merion membership the same day it was created.
I think it's humorously ironic that David now doesn't give a sh*t about the map and rushes to disavow anything about its accuracy and heritage like a tow-headed stepchild in Ethiopia. When he first found it, he offered it as proof positive that the Francis Exchange had to have happened prior to January 1911 in an attempt to discredit Hugh Wilson with the routing even though I would think he had to have noticed that the area in question at the top of the map was not 130x190 as Francis needed, but instead something considerably narrower and longer.
Here is a portion of what David wrote in his essay, the italics and bolding for emphasis are mine;
As quoted by Tolhurst, Francis wrote that Merion gave up “land west of the present course which did not fit in with any golf layout;” land which was later “covered by fine homes along Golf House Road.” In exchange, Merion received a small section of “land about 130 yards wide by 190 yards long – the present location of the 15th green and the 16th tee.” No doubt Francis was describing the land between the present practice area and Golf House Road, a small triangle of land that perfectly matches Francis’ description. More importantly, the land was acquired while Merion was putting the finishing touches on the routing plan for the course. So the date of the supposed “swap” will allow us to determine when the final touches were being put on the initial routing plan.
Surprisingly, as one can see in the land plan above, Merion acquired this small projection of land as part of the 117-acre parcel designated “Merion Golf Course” in the Plan. Merion optioned and purchased the land for the 15th green and 16th tee as part of their option and purchase of the bulk of the golf course property. Property records confirm this. The supposed land swap must have occurred prior to mid-November 1910, when Merion obtained an option from Haverford Development Company. This was six weeks before the purchase was finalized and the Construction Committee appointed. The “swap” was not a swap at all but actually a small but significant reshaping of the large parcel Merion intended to purchase from Haverford Development Company. Before the purchase, the parties must have agreed to shave off a portion on the right side of the parcel and added the projection of land for the 15th green and 16th tee.
Francis and Lloyd had been fine-tuning the layout plan before Merion secured the land. Francis described his epiphany as having occurred while he was looking over a “map of the property.” He also noted that the land Merion gave up “did not fit at all in any golf layout.” So by this time the planning process was well underway, and the “swap” allowed them to better fit the last five holes into the plan for the routing. “It was not very difficult to get the first 13 holes into the upright portion – with the help of a little ground on the north side of Ardmore avenue – but the last five holes were another question.” The Francis land “swap” allowed them to complete the routing plan. All before November 10, 1910.This was the keystone of David's essay that sought to remove Hugh Wilson from authorship of the Merion East Course, his "Holy Grail" finding, if you will, and the lynchpin supporting his entire argument.
Now he tell us he doesn't even think Pugh and Hubbard measured the golf course for that map!! 
And, I have no idea what he's referring to when he wrote, "Property records confirm this", do you?
But as you say, the dimensions of that triangle don't match what Francis told us he needed to fit those last five holes into the routing. The map itself isn't 117 acres according to Bryan, but more like 124 acres.
Do you think it would have mattered to Richard Francis that the proposed boundary was 100 or so yards wide when he needed 130 yards in width to fit those holes?David's essay also tells us that the 3 acres of Railroad Land had not been yet acquired at the time the map was drawn by Pugh & Hubbard, and that's apparent by the fact that it is not shaded in green and identified as part of the "Golf Course" as of November 15, 1910. Here's some of what David's essay said about that matter;
But the “Plan Showing Proposed Golf Course” is a few acres short. The Site Committee had sought “nearly 120 acres,” not 117 acres. The Plan does not include one small tract – a little less than three acres – that the Site Committee needed for the course. Like the “Dallas Estate,” this last small parcel was not under the control of Haverford Development Company at the time site committee recommended its purchase. Unlike the “Dallas Estate,” the Merion may have been unable to secure this parcel prior to the date Merion secured the rest of the land.
Merion’s Unsecured Three Acres Like much of their original golf course in Ardmore, the remaining small tract of land needed for Merion’s “permanent course” was controlled by a railroad. The Philadelphia and Western Railway owned almost three acres located west of their track, east of Cobb’s Creek, and running north of Ardmore Avenue to a little past the old historic farmhouse that would become Merion’s future clubhouse.And David's correct here; if Merion had indeed determined that those three acres were part of the golf course by that time it should have been included on the "plan", no?
Yet, it's not, so what what does that tell us about the state of planning at the time this map was drawn on November 15, 1910?
Here again is what Richard Francis wrote;
"Except for many hours over a drawing board, running instruments in the field, and just plain talking, I made but one important contribution to the layout of the course. The land was shaped like a capital "L" and it was not very difficult to get the first 13 holes into the upright position - with the help of a little ground on the north side of Ardmore Avenue - but the last 5 holes were another question.
I was looking at a map of the property one night when I had an idea.What map do you think he was looking at? Something from Pugh & Hubbard or something he had drawn prior to November 15th, 1910? Clearly his brainstorm happened
after they had determined they could use those three acres of Railroad land they leased for decades, right?
If he had a map that indicated a completed golf course based on his brainstorm, why wouldn't they have mailed that to their members? Why wouldn't they put their best foot forward showing all of their supposed prior months of golf course planning efforts that they'd supposedly just concluded?
Instead, they sent a map with dimensions much unlike the course they eventually planned that did not include a single proposed golf hole. What does that tell you?
Related, if all of that land was under Lloyd's ownership for him to do what he pleased by November 15, 1910, why did he feel the need to purchase the entire 140 acre Johnson Farm and 21 acre Dallas Estate a month later? Recall that he made that purchase under the advice of Merion's counsel a month later because the boundaries of the golf course had not yet been determined and it was stated in Cuyler's late December letter to Merion that it was known that those determinations would be at some yet unknown future date.
Richard Francis was very precise. He told us precisely what he needed to complete the routing plan and fit in the last five holes. How is that congruous with any of the imprecision and uncertainty associated with this "plan", as well as the timing of other events?