These criticisms, first raised by bloggers,[9][10] were taken up by outlets of the mainstream press, including The Washington Post, The New York Times, the Chicago Sun-Times, and others, who sought opinions from multiple experts.
One of the initial doubts bloggers raised about the memos was the use of proportional fonts (as opposed to a monospaced typeface, where all glyphs have a single, standard width).
John Collins, vice president and chief technology officer at Bitstream Inc., the parent of MyFonts.com, stated that word processors that could produce proportional-sized fonts cost upwards of $20,000 at the time (equivalent to $146,000 in 2023).
[8] Phinney's analysis was based on the fact that the typography of the Killian documents could be closely matched with a modern personal computer and printer using Microsoft Word with the default font (Times New Roman) and other settings.
(The technology allows even finer variability of character widths, but the 18 unit system was chosen for compatibility with the Linotype phototypesetting and earlier hot-metal versions of the font.)
In contrast, the variability of character widths available on early 1970s typewriters using proportional letterspacing was more limited, due to the mechanical technology employed.
[8] Phinney has long offered $1,000 "to anybody who can produce an office-level device that was available in 1972 that can replicate the relative line endings of those memos" but no-one has ever tried to do that.
Joseph Newcomer, who helped pioneer electronic typesetting and word processing software,[15][16] claims that the memos display a simple alternative to kerning characteristic of TrueType fonts but not available on any office equipment in 1972.
For an example of multiple centered lines produced using a proportionally spaced typewriter font, see the third page of the contemporary annual history of Bush's Alabama guard unit.
[19] Word processors, by contrast, center text based on a computer algorithm using a fixed central reference point rather than the left margin on the typewriter as measured from the paper's edge.
[citation needed] The Washington Post reported that "of more than 100 records made available by the 147th Group and the Texas Air National Guard, none used the proportional spacing techniques characteristic of the CBS documents.
According to The Washington Post, "The analysis shows that half a dozen Killian memos released earlier by the military were written with a standard typewriter using different formatting techniques from those characteristic of computer-generated documents.
CBS's Killian memos bear numerous signs that are more consistent with modern-day word-processing programs, particularly Microsoft Word..." (September 14, 2004).
[20] However, Matley told The Washington Post on September 14, "There's no way that I, as a document expert, can authenticate them" because they are copies far removed from the original source.
"[25] Walter Staudt, cited in the memo dated August 18, 1973, as exerting pressure on officers to "sugar coat" their evaluations of Bush, had in fact retired from the service in March 1972.
"[26] It is a matter of record that Lt Bush was suspended from flight status on August 1, 1972, for failure to complete a required annual physical.
[29] Retired Colonel and former TXANG pilot William Campenni disputed the document dated Thursday May 4, 1972, which ordered Bush to report for a flight physical not later than May 14.