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: Lon M Byars (3 Nov 1868 Lockney, Floyd County, Texas, USA - 20 Mar 1941 Vernon, Wilbarger County, Texas, USA)
Mother: Mary Ardenia Harvey (27 Jul 1869 Colbert County, Alabama, USA - 29 Jul 1937 Vernon, Wilbarger County, Texas, USA)
Benjamin Franklin Byars
(16 Jan 1894 Oklaunion, Wilbarger County, Texas, USA - 14 Mar 1958 Vernon, Wilbarger County, Texas, USA)
Jennie Pearce
(Sep 1897 Hood County, Texas, USA - ??)
         ├─Nathan L Byars
(20 Nov 1913 Wilbarger County, Texas, USA - 21 Mar 1995 Weatherford, Parker County, Texas, USA)
         │ Cleoda Marie Peacock
(22 Mar 1916 Box Elder, Red River County, Texas, USA - ??)
         │          └─Donald Ray Byars
(9 Jan 1938 Vernon, Wilbarger County, Texas, USA - 27 Sep 1993 Dallas, Dallas County, Texas, USA)
         │           Living
         ├─Mary Louise Byars
(Abt 1919 Texas, USA - 29 May 2008 bur.Eastview Memorial Park, Vernon, Wilbarger County, Texas, USA)
         │ Troy Collier
(16 Dec 1916 - 29 Jul 1987 Wilbarger County, Texas, USA)
         │          └─Troy Don Collier
         │           Ann Lee
         └─Raymond Everett Byars
(14 Jan 1924 Vernon, Wilbarger County, Texas, USA - 1 Oct 1976 Dallas, Dallas County, Texas, USA)