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: Isaac Washington Richmond (2 Dec 1838 Cleveland, Bradley County, Tennessee, USA - 19 Jul 1920 Mount Pleasant, Scott County, Arkansas, USA)
Mother: Martha Lou Amy Putnam (4 Aug 1839 Arbacoochee Gold Mines, Cleburne County, Alabama, USA - 18 Jan 1916 Waldron, Scott County, Arkansas, USA)
Lillian (Lilly) Richmond
(Jan 1872 Cleveland, Bradley County, Tennessee, USA - 1939 Arkansas, USA)
         ├─Thomas R Gaines
(16 Sep 1900 Scott County, Arkansas, USA - 21 Dec 1983 Waldron, Scott County, Arkansas, USA)
         ├─Audra May Gaines
(4 Jan 1892 Scott County, Arkansas, USA - 19 Jan 1945 Kansas City, Jackson County, Missouri, USA)
         │ + Warren Chester Ashford
(10 Sep 1882 Kentucky, USA - 3 Dec 1945 Philippines)
         ├─Hugh Gaines
(1 Jan 1894 Scott County, Arkansas, USA - ??)
         ├─Ernest Edgar Gaines
(15 Apr 1896 Hon, Scott County, Arkansas, USA - 20 Dec 1952)
         ├─George Greer Gaines
(25 Mar 1898 Scott County, Arkansas, USA - 28 Dec 1963 Kansas City, Jackson County, Missouri, USA)
         ├─John Bural Gaines
(5 Jul 1903 Scott County, Arkansas, USA - 23 Feb 1997 Los Angeles, Los Angeles County, California, USA)
         └─Lillian Gaines
(1908 Arkansas, USA - ??)