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: John Birmingham ( - Between 10 Apr 1747 and 14 May 1747 Queen Anne's County, Maryland)
Margaret Birmingham
(1719 Queen Anne's County, Maryland - 1784 Anson County, North Carolina)
John Seago ( - Aft 6 Dec 1784 Anson County, North Carolina)
(m. 17 Apr 1740 St. Luke's Protestant Episcopal Parish, Church Hill, Queen Anne's County, Maryland)
└─Abraham Seago (6 Feb 1757 Queen Anne's County, Maryland - Bef 6 Dec 1784)
└─James Seago (22 Dec 1777 Anson County, North Carolina - Aft 1850 Hart, Kentucky)
Nielsen Hayden genealogy
1719 - 1784 (65 years)
( - Between 10 Apr 1747 and 14 May 1747 Queen Anne's County, Maryland)
John Seago 
