GSL/L/R/17/108
Letter from Henry Keyes JORDAN
22 May 1865
GSL/L/R/17/341
22 May 1866
GSL/L/R/19/217
Letter from: Henry Keyes JORDAN
6 Apr 1877
LDGSL/1053
'Horizontal section across the Dyffryn Trough, Neath'
1908