"England & Wales, National Probate Calendar (Index of Wills and Administrations), 1858-1966, 1973-1995", digital images, Ancestry (http://www.ancestry.co.uk : accessed 15 December 2017), entry for Richard Nightingale died 16 January 1879 in Oldbury; citing Principal Probate Registry. Calendar of the Grants of Probate and Letters of Administration

Text from source:

Nightingale Richard
Personal Estate under £1,000

2 May. The Will of Richard Nightingale late of Oldbury in the County of Worcester Pawnbroker who died 16 January 1879 at Oldbury was proved at Worcester by Lucy Nightingale of Church Bridge near Oldbury in the said County Widow the Relict (during Widowhood) and William Nightingale of Queen-Street Oldbury Butcher two of the executors.