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: Jeptha Gilbert Barger (26 Aug 1854 Tennessee, USA - 1960 Celeste, Hunt County, Texas, USA)
Mother: Mary A Price (Mar 1860 White County, Tennessee, USA - 1932 Hunt County, Texas, USA)
Walter Vernon Barger
(6 Nov 1885 Whitewright, Grayson County, Texas, USA - 2 Jan 1954 Norman, Cleveland County, Oklahoma, USA)
Myrtle B Mulkey
(20 May 1893 Hunt County, Texas, USA - 28 Oct 1968 Norman, Cleveland County, Oklahoma, USA)
         ├─Audrey Barger
(Abt 1914 Texas, USA - ??)
         └─Ellen Janet Barger
(22 Jun 1920 Alden, Caddo County, Oklahoma, USA - 10 Sep 2002 Oklahoma City, Oklahoma County, Oklahoma, USA)