These MANLEYs were shown in the 1901 census index (using 1901 Census Decoder
http://www.censusdecoder.com)
Llantrisant, Glam:
Tom 23 (b1878) Herngock (sic) Devon Coalminer Hewer
Fanny 22 (b1879) Llantrisant Glam
Elsie 10m (b1900) Llantrisant Glam
Llantrisant, Glam:
Sydney 26 (b1875) Hemyock Devon Coalminer Hewer
Llantrisant, Glam:
William 39 (b1862) Hemyock Devon Coalminer Hewer
Sarah 35 (b1866) Churchford Devon
Albert 18 (b1883) Hemyock Devon Coalminer Hewer
Ernest 16 (b1885) Hemyock Devon Coalminer Hewer
William 14 (b1887) Hemyock Devon Coalminer Boy
Mary 13 (b1888) Hemyock Devon
Sarah 8 (b1893) Tonyrefail Glam
Agnus (female?) 5 (b1896) Tonyrefail Glam
Stanley 2 (b1899) Tonyrefail Glam
Davey 1 (b1900) Tonyrefail Glam (--edited to show correct details)ps Tonyrefail came under the census district of Llantrisant.
pps There is a street in Tonyrefail named MANLEY Close.