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 Midgely SHACKLETON (5 Oct 1879 Keighley, Yorkshire, England - 17 Apr 1941 Cardup, Western Australia, Australia)
Mother: Mary Jane Ann PICKUP (20 Jun 1888 Merewether, New South Wales, Australia - 6 Mar 1974 Fremantle, Western Australia, Australia)
Mavis Irene SHACKLETON
(21 May 1915 Boulder, Western Australia, Australia - 28 Jan 1988 Claremont, Western Australia, Australia)
+ John Robert Lionel KELL (Abt 1918 - DECEASED)(m. 2 Feb 1935 Perth, Western Australia, Australia)
Hendricus Jacobus VAN HALL (20 Apr 1918 Netherlands - 18 Aug 1985 Fremantle, Western Australia, Australia)(m. 10 Nov 1943 Sydney, New South Wales, Australia)