Elv,
I have found for you on the IGI:
Dorothy HALL christened on 17th Feb 1850 at Castletown - Parents were; Joseph HALL and Phoebe NICKLIN.
Joseph HALL was born abt 1822 in Onchan - film no; 445966 - Ref No. 87212
They were married on 19th March 1847.
I looked through for your other people for UK and I.O.M from 1780 - 1910
No mention of Phillipa Remon HALSALL OR Percival HALSALL for their Births, Marriages or Deaths.
P.s
I have an Esther HALSALL married to a Robert CORRIN in Kirk German 1850 does this ring any bells?
Regards,
Carol