Hi!
John Vincent Nichols 3/10/1826 Tas - 1/1/1900 New South Wales
Father - Thomas Nichols (convict on the Maria 1820) 1801 - 1882
Mother - Mary Ann Vincent (free person) 1804 - 1877
Thomas & Mary Ann marry 10 Nov 1823. He was 22 she was 19.
John & Matilda married about 1851 & had about 14 children. Matilda 1852, Mary Ann 1855, Thomas 1856, Edward 1858, John 1859, Susan 1860, William 1862, Alfred 1864, Clara 1869, Henry 1872, Alice 1874, Violet 1867, Edith 1880 & Mark 1883 - not all living to adulthood.
For info on his life there's a book "Path of Pioneers" by John Lynch (A History of early Ten Mile Creek -Germanton- Holbrook. Bottom of page 67.
In the book it says he came to tassie at age 9 but I have his birth info from the Aust birth index stating he was born in Tassie also on his fathers marriage cert it states Thomas is a convict . I think he hid the fact that his father was a convict.
Hope that helps.