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":
Father: Thomas Gilbert Richmond (6 Apr 1870 Cleveland, Bradley County, Tennessee, USA - 3 Oct 1935 Cardiff, Scott County, Arkansas, USA)
Delsie L Richmond
(29 Nov 1909 Scott County, Arkansas, USA - 30 Mar 1998 Greenwood, Sebastian County, Arkansas, USA)
Gilbert G Beshears
(Scott County, Arkansas, USA;30 Sep 1907 - 17 May 1992)
         ├─Willamette Beshears
(22 Dec 1928 Scott County, Arkansas, USA - 4 Oct 1974 California, USA)
         │ Living
         │          ├─Charles Kennedy
(Mansfield, Scott County, Arkansas, USA;9 Jan 1947 - 7 Sep 1952)
         ├─Billy Gilbert Beshears
(4 Jul 1933 Scott County, Arkansas, USA - 18 Jun 1988 Mansfield, Scott County, Arkansas, USA)
         ├─Melba Dean Beshears
(2 Jun 1939 Scott County, Arkansas, USA - 8 Jun 1961)
         │ + Living
         └─Jerry Kent Beshears
(4 Dec 1941 Fort Smith, Sebastian County, Arkansas, USA - 23 Aug 2007 Mansfield, Scott County, Arkansas, USA)
          Living