The paper length is not relevant since the chart flows from one page to the next.
Mobile
in.
mm
Portrait
2.75
70
For smart phones, not for printing
Landscape
5.5
140
For smart phones, not for printing
USA & Canada
in.
mm
Letter Portrait
8.5
216
Also Legal Portrait
Letter Landscape
11
279
Legal Landscape
14
356
Also Ledger Portrait
Ledger Landscape
17
432
International
in.
mm
A5 Portrait
5.82
148
A4 Portrait
8.25
210
Also A5 Landscape
A4 Landscape
11.71
297
Also A3 Landscape
A3 Landscape
16.54
420
The Text+ programs assume that the right and left margins are each about 25mm (1/2 inch) wide.
On the Format for Printing page, differences in page margins can be accommodated by the "fudge factor":
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┌──George Lloyd Parrish
(31 Oct 1894 Oklahoma, USA - 13 Apr 1968 Fallon, Churchill County, Nevada, USA)
┌──Frederick Lester Parrish
(13 Mar 1917 Oklahoma, USA - 3 Aug 1994 Fallon, Churchill County, Nevada, USA)
│ │ ┌──James Alonzo (Lon) Travis
(13 Mar 1875 Chimsville, Logan County, Arkansas, USA - │ │ │ 17 Dec 1953 Reno, Washoe County, Nevada, USA)
│ └──Dessie Mae Travis
(16 Dec 1897 Bates, Scott County, Arkansas, USA - 16 Nov 1918 Fallon, Churchill County, Nevada, USA)
│ │ ┌──Isaac Washington Richmond
(2 Dec 1838 Cleveland, Bradley County, Tennessee, USA - │ │ │ 19 Jul 1920 Mount Pleasant, Scott County, Arkansas, USA) =>
│ └──Mary Jane (Molly) Richmond
(28 Jul 1877 Borden Springs, Cleburne County, Alabama, USA - │ 26 Jun 1948 Fallon, Churchill County, Nevada, USA)
│ └──Martha Lou Amy Putnam
(4 Aug 1839 Arbacoochee Gold Mines, Cleburne County, Alabama, USA - │ 18 Jan 1916 Waldron, Scott County, Arkansas, USA) =>