Maria Newman
Maria Newman nee Walton was born in 1834 in Selby Yorkshire and died 23 Feb 1904 St Marylebone, London, to parents Rev John Leidger Walton (Vicar of Silkstone) 1806-1880 and Eliza Kingsley 1816-1890.
Baptised 30 Jul 1837 Selby Yorkshire England
Married Thomas James Newman 11 Aug 1865 Silkstone with Stainborough, All Saints, Yorkshire, England. They had 7 children all born Barnsley and baptised Barnsley, St Mary, Yorkshire, including Denis Newman 1874-1901.
In 1841 census Maria 3 years is living in Selby Yorkshire with her parents John Walton 35 Clerk Incumbent. and Eliza 25 and three siblings.
In 1851 census Maria 13 is living in the parish of Silkstone with parents John L 45 Vicar of Silkstone, Eliza 35, five siblings and a Governess, Nurserymaid, Housemaid and a Cook
In 1861 census Maria 23 is living in the parish of Silkstone with parents John L 55 Vicar of Silkstone, Eliza and 5 siblings and a Housemaid and a Cook
In 1871 census Maria 33 living at 98 Sackville Street Barnsley Yorkshire with husband Thomas J Newman 44 Solicitor, children Mary Lister Newman 4 and Edward 2 plus a Nursemaid and Cook.
In 1881 census Maria 43 is living at 96 Sackville Street Barnsley with husband, Thomas J 54 Solicitor and children, Charles A 8, Denis 6, Kingsley 4 and Monica M 3 plus a Cook, Nurse and Housemaid
In 1891 census Maria 53 is living at 102-104 Sackville Street Barnsley with husband Thomas J 64 Solicitor and sons Maximilian 21 Surveyor's Clerk and Denis 16 plus a Parlour Maid, Cook and Housemaid.
In 1901 Maria 63 is living at Bramston House, Market Street Oundle Northamptonshire with husband Thomas James 74 Retired Solicitor and Children Kingsley 24 Mechanical Engineer, Monica Mary 22, Ellen Bramell Wid 73 Visitor plus a Parlour Maid and a Housemaid.
Maria Newman died in 1904 aged 66 years. Her death is registered in Jan-Feb-Mar qtr at St Marylebone London.
I have been unable to find a burial for her.
I think it's safe to say that the third window is dedicated to Denis and his mother Maria.