Howlett (1958) got nearly everything wrong about the four maps including the sequence Palmer acquired them. He also got wrong what specific maps were in each of the furniture pieces (although I will not detail that here). I do not consider him remotely reliable. You uncritically copied him without doing any fact-checking, which is lazy. All of Howlett's errors appeared in your 1996 book.
Sequence (when Palmer acquired the maps) -
Howlett (1958): Oak Bureau (1929), Hardy Chest (1931), Morgan Chest (1932), Workbox (1934).
Wilkins (1935): Hardy Chest (1930), Morgan Chest (?*), Oak Bureau (1932), Workbox (1933).
Reality: Hardy Chest (1927), Morgan Chest (1931?), Oak Bureau (1932), Workbox (1933).
*Wilkins states Dan Morgan sold the so-called Morgan Chest in 1929 to Arthur Cutler but does not note the year Palmer acquired it (although this must have been pre-1932).
It was Wilkins who got closest to the truth in regard to the sequence and what specific maps came in the two chests, bureau and workbox, however, he got the year Palmer acquired the Hardy Chest wrong by a few years. We know Palmer acquired the Hardy Chest in 1927 because he wrote a letter to Charles Driscoll and Driscoll in an article mentioned the year Palmer came into possession of the Hardy Chest since he read his letter (1927 ["about three years" before Driscoll published the article in July 1930]).
View attachment 2232291
- Driscoll (1930)
This is why Randawg72's bashing of Wilkins and his claim Wilkins' book is worthless is deeply irrational. Wilkins (1935) is the most accurate source in regards to when Palmer acquired the maps and what maps came in the furniture pieces. We know this based on Driscoll's article and the private letters Wilkins wrote to Palmer (and vice-versa), usefully published by Gjb. It does not surprise me that Wilkins would be proven to be far more a reliable source on the maps than Howlett since Wilkins (unlike Howlett) met Palmer in person and corresponded with him - most of what he wrote in his 1935 book is corroborated by what Palmer and Wilkins wrote to each other in their private letters.