Likely family tree (incomplete)-
David McGuinness/McGinnis, painter & glazier, m. Jane Nesbitt.
1.
Jane Dunbar McGuinness (1839-1912), eld. dau., m.(1865 N.Z.) Edwin Holloway
2.
Matilda “Tilly” McGuinness (c1843), 2nd dau., m.(1863) Thomas Henry Corr
3.
Rev. William Nesbitt McGuinness (c1834-1881 Australia), eld. son, m.(1874) Charlotte Priscilla Watson
https://www.findagrave.com/memorial/181588376 “while on a visit to Australia”
Administration in Victoria: sister Matilda Corr wife of Thomas Henry Corr
4.
Samuel Gilliland McGuinness (c1851-1919)
Not sure if same David McGuinness- if so he also married Rebecca?
David McGinness, William St., m. Rebecca (d.1854)
1.
Robert McGuinness (c1846-1853)
Samuel Gilliland McGuinness (c1851-1919), house painter, m.(c1870) Jane Colhoun (d.1929)
1879/1880- 96 Bishop St.; 1882/1884- 73 Bishop St.; 1898- 20 Abercorn St.
1.
Rebecca Margaret McGuinness (1871-1882)
Londonderry Sentinel, 18 Mar.1871: M'Guinness—March 13, Bishop-street, Londonderry, the wife of Mr. Samuel M-Guinness, of daughter.
2.
William Nesbitt McGuinness (c1873-1956), mill manager, m. Rosa (d.1961)
3.
Harriett Jane McGuinness (c1879) m. _ Montgomery. 1956- Philadelphia
4.
David Dunbar McGuinness (1879-1930) m.(1898) Anna Mary Ward (d.1943)
1. Pearl McGuinness (1915-1955) m. J. Cairns
& others
5.
Samuel Thomas McGuinness (1880-1880)
6.
Samuel Joseph McGuinness (c1883-1958), dentist. 1919- Railway St., Strabane.
1. Stillborn child (1913)
7.
Robert James Black McGuinness (1883-1884)
Derry Journal, 25 Feb.1884: M'Guinness —February 22, at 73, Bishop-street, Londonderry, Robert James Black, youngest son of Samuel M'Guinness.
8.
(d.bef.1956), Toronto