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: Henry Martin Walker (Washington County, Tennessee, USA;4 Sep 1833 - 17 Feb 1918)
Mother: Amanda Jane Bacon (18 Mar 1844 Sulphur Springs, Washington County, Tennessee, USA - 22 Jan 1908 Washington County, Tennessee, USA)
Henry Andrew Walker
(Washington County, Tennessee, USA;18 Mar 1875 - 30 Nov 1955)
Mary Adelaide Hunt
(24 Dec 1879 Washington County, Tennessee, USA - 21 Jan 1960 Johnson City, Washington County, Tennessee, USA)
         ├─Lois Amanda Walker
(Washington County, Tennessee, USA;17 May 1904 - 13 Oct 1986)
         │ + James Roy Hale
(5 Jul 1902 - 24 Feb 1964 bur.Jonesborough, Washington County, Tennessee, USA)
         ├─Robert James Walker
(Washington County, Tennessee, USA;10 Aug 1906 - 28 Oct 1991)
         │ + Flora Lavenia Gray
(22 Jan 1907 Sullivan County, Tennessee, USA - 3 Jun 1989 Sulphur Springs, Washington County, Tennessee, USA)
         ├─Amy Glen Walker
(Washington County, Tennessee, USA;4 Jan 1907 - 11 Apr 1993)
         │ + Joseph Lee Bowman
(Washington County, Tennessee, USA;20 Jun 1902 - 8 Mar 1985)
         ├─Henry Martin Walker, II
(8 Oct 1908 Washington County, Tennessee, USA - 7 Jan 1985 Sulphur Springs, Washington County, Tennessee, USA)
         │ + Flora Caroline Deakins
(12 Feb 1909 Washington County, Tennessee, USA - 20 May 1985 Sulphur Springs, Washington County, Tennessee, USA)
         ├─Mary Ann Walker
(24 Nov 1915 Washington County, Tennessee, USA - 10 May 2001 Jonesborough, Washington County, Tennessee, USA)
         │ + Bruce Hunt Bacon
(Washington County, Tennessee, USA;17 Sep 1906 - 18 Feb 1969)
         ├─Infant Son Walker
(Washington County, Tennessee, USA;30 Jan 1914 - 30 Jan 1914)
         ├─Herbert Carter Walker
(Jonesborough, Washington County, Tennessee, USA;10 Dec 1898 - 2 Oct 1979)
         │ + Jessie Pauline Diehl
(7 Jun 1903 Boones Creek, Washington County, Tennessee, USA -          │ : 24 May 1924 Jonesborough, Washington County, Tennessee, USA)
         │ Lucille Morrow
(21 Dec 1909 Telford, Washington County, Tennessee, USA -          │ 25 Sep 1978 Jonesborough, Washington County, Tennessee, USA)
         │           + Cyrus Ely Warden
(8 Jan 1936 New York, New York County, New York, USA - 8 Jun 2013 Satellite Beach, Brevard County, Florida, USA)
         └─Maynard Buren Walker
(23 Jul 1901 Washington County, Tennessee, USA - 2 Jul 1949 Greeneville, Greene County, Tennessee, USA)
          + Lucille Smith
(5 Jul 1910 Kentucky, USA - Oct 1984 New York, New York County, New York, USA)