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: Will Wright Horton (27 Aug 1859 Tishomingo County, Mississippi, USA - 8 Apr 1907 Tucumcari, Quay County, New Mexico, USA)
Mother: Hester Ann Burns (18 Dec 1858 Burleson County, Texas, USA - 20 Oct 1919 Quay County, New Mexico, USA)
Eva Horton
(11 Jul 1891 Quanah, Hardeman County, Texas, USA - 28 Nov 1991 Fort Sumner, De Baca County, New Mexico, USA)
John Edwin (Ed) Lobley
(8 Dec 1887 St Jo, Montague County, Texas, USA - 11 Oct 1970 Lubbock, Lubbock County, Texas, USA)
         ├─Grady Dee Lobley
(29 Dec 1921 Fort Sumner, De Baca County, New Mexico, USA - 29 Aug 2015 Midland, Midland County, Texas, USA)
         │ + Living
         ├─Harold Lloyd Lobley
(1 Feb 1924 Fort Sumner, De Baca County, New Mexico, USA - 11 Feb 2010 Wichita Falls, Wichita County, Texas, USA)
         │ Living
         │          ├─Lynn Lobley
(26 Nov 1963 - 25 Jun 1981 Wichita Falls, Wichita County, Texas, USA)
         │          └─Phillip Lloyd Lobley
(9 Sep 1957 Palestine, Anderson County, Texas, USA - 3 Jan 1963 Wichita Falls, Wichita County, Texas, USA)
         │ + Living
         │ Shirley Cinthia Christian
(4 Jan 1935 Brownwood, Brown County, Texas, USA - Jan 2008 San Antonio, Bexar County, Texas, USA)
         │ Charles Ray Puckett
(26 Mar 1930 Hope, Eddy County, New Mexico, USA - 26 May 2011 Moriarty, Torrance County, New Mexico, USA)
         │          ├─Donald Edwin Puckett
(4 Jan 1956 Lewistown, Fergus County, Montana, USA - 31 May 2003 Edgewood, Santa Fe County, New Mexico, USA)
         ├─Howard Edwin Lobley
(16 Jan 1915 West, Quay County, New Mexico, USA - 20 Jul 1993 Roswell, Chaves County, New Mexico, USA)
         │ Dorothy Southard
(25 Feb 1919 Quemado, Catron County, New Mexico, USA - 2 Oct 2003 Roswell, Chaves County, New Mexico, USA)
         ├─Viera Laurann Lobley
(25 Feb 1917 West, Quay County, New Mexico, USA - 4 Oct 2002 Euless, Tarrant County, Texas, USA)
         │ Calvin Clark
(Abt 1916 Oklahoma, USA - ??)
         │          ├─Curtiss Steven Clark
(2 Jul 1937 Fort Sumner, De Baca County, New Mexico, USA -          │          │ 15 Apr 1995 Roswell, Chaves County, New Mexico, USA)
         │          │ Living
         │          ├─Terry Douglas Clark
(17 May 1956 Roswell, Chaves County, New Mexico, USA - 6 Nov 2001 Santa Fe, Santa Fe County, New Mexico, USA)
         │          │ Living
         │          └─Barbara Clark
(Roswell, Chaves County, New Mexico, USA; - 1997)
         └─Lola Eva Lobley
(19 Sep 1919 Fort Sumner, De Baca County, New Mexico, USA - 14 Apr 2011 Roswell, Chaves County, New Mexico, USA)
          James William (J.W.) Patterson, Jr
(2 Sep 1918 De Baca County, New Mexico, USA - 6 Jun 1985 Roswell, Chaves County, New Mexico, USA)
                   │ Jon Jones Nelson
(1 Dec 1943 Arkansas, USA - 19 Mar 2005 Seguin, Guadalupe County, Texas, USA)
                   │ + Living
                   ├─William (Billy) Patterson
(18 Oct 1953 Roswell, Chaves County, New Mexico, USA - 8 Oct 1978 Colorado, USA)
                   └─Sherry Patterson
(1 Oct 1942 Fort Sumner, De Baca County, New Mexico, USA - 3 Jul 2003 Roswell, Chaves County, New Mexico, USA)
                    Living