Hi Liz
Hugh Crennell was also a Miller. He married Margaret Joyce 10/5/1851 and was born c1831 Malew. Transcribed as CRUMELL in 1861, address looks like Laburnum Cottages, age 30, Margaret 30 (born Michael) with William 9, Elizabeth 3 and John 1. Also found them 1881 address KEWAIGUE with daughter Louisa J aged 21 born Braddan and Thomas S aged 13 born Patrick.
William only listed as William though not William F.
I will try and find them 1871 if you wish. Hope this helps.
Sandra