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":
Legend:
Father: Samuel Cominsky (1858 Berdychiv, Zhytomyrs'ka oblast, Ukraine - Aug 1943 Rochester, Monroe, New York)
Mother: Lena Zodikow (Abt 16 Aug 1862 Kaunas, Lithuania - 19 Nov 1950 Rochester, Monroe, New York)
Stella Cominsky
(16 Mar 1886 Upper Falls, Rochester, Monroe, New York - 31 Jul 1961 Poughkeepsie, Dutchess, New York)
Edward James Ballantine (3 Dec 1887 Edinburgh, Midlothian, Scotland - 20 Oct 1968 London, England)
   ├─Ian Keith Ballantine (21 Feb 1916 New York, New York - 9 Mar 1995 Bearsville, Ulster, New York)
   │ + Elizabeth "Betty" Norah (25 Sep 1919 India - 12 Feb 2019 Bearsville, Ulster, New York)(m. 1939)
   └─David Ballantine (11 May 1926 Rochester, Monroe, New York - 22 Jun 2005)