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: Basil Hayden (7 Aug 1774 St. Mary's County, Maryland - 20 Jul 1833 Washington County, Kentucky)
Mother: Mary Rapier (21 Jul 1777 St. Mary's County, Maryland - 30 Jan 1838 Calvary, Marion, Kentucky)
William Basil Hayden
(22 Aug 1817 Calvary, Marion, Kentucky - 16 Nov 1878 St. Paul, St. Charles, Missouri)
Mary Beatrice Freymuth (13 Mar 1823 Prussia - 17 Jan 1872 bur.St. Paul, Missouri)(m. 20 Jan 1846 St. Peter, Missouri)
   └─James Rapier Hayden (St. Paul, St. Charles, Missouri;8 Jun 1849 - 24 Mar 1934)
    Rosa P. Bowles (29 Jan 1860 St. Paul, St. Charles, Missouri - 14 Oct 1937)(m. 7 Sep 1876)
       └─Sharp Adolphus Hayden (20 Sep 1896 St. Paul, St. Charles, Missouri - 26 Jun 1956 Washington, D.C.)