Some to be going on with. Will look for remainder in a day or so.
Taken from Powys Family History Society's census transcriptions.
1841
Township of Maestyrhos Lowry in the Parish of Llanddewi Ystradenni
PHILLIPS, Rees, 30, Mason, Y, Pontagelly, f17/p12
PHILLIPS, Mary, 25, Y, Pontagelly, f17/p12
PHILLIPS, James, 3, Y, Pontagelly, f17/p12
PHILLIPS, Rees, 10m, Y, Pontagelly, f17/p12
1851
The Whole of the Parish of Llanddewi Ystradenni including the Townships of Church & Mystyrrhoslawddy
PHILLIPS Rees, h, m, 35, stonemason, RAD Llan Ystradenni, Lower House, /f297/p13
PHILLIPS Mary Anne, w, m, 35,, RAD Llandrindod, Lower House, /f297/p13
PHILLIPS James, s,, 12,, RAD Llanbister, Lower House, /f297/p13
PHILLIPS Rees, s,, 10,, RAD Llan Ystradenni, Lower House, /f297/p13
PHILLIPS Thomas, s,, 9,, RAD Llan Ystradenni, Lower House, /f297/p13
PHILLIPS John, s,, 7,, RAD Llan Ystradenni, Lower House, /f297/p13
PHILLIPS Mary Anne, d,, 5,, RAD Llan Ystradenni, Lower House, /f297/p13
PHILLIPS Sarah, d,, 3,, RAD Llan Ystradenni, Lower House, /f297/p13
PHILLIPS Richard, s,, 1,, RAD Llan Ystradenni, Lower House, /f297/p13
1861
Parish of Llanbister
PHILLIPS Reese, h, m, 45, Mason, RAD Llandewy, Bryndu-hofac, /f6/p7
PHILLIPS Mary Ann, w, m, 45, , RAD Llandewy, Bryndu-hofac, /f6/p7
PHILLIPS Reese, s, u, 20, Masom, RAD Llandewy, Bryndu-hofac, /f6/p7
PHILLIPS Mary Ann, d, u, 15, , RAD Llandewy, Bryndu-hofac, /f6/p7
PHILLIPS Sarah, d, u, 13, , RAD Llandewy, Bryndu-hofac, /f6/p7
PHILLIPS Richard, s, u, 11, , RAD Llandewy, Bryndu-hofac, /f6/p7
PHILLIPS Catherine, d, u, 9, , RAD Llandewy, Bryndu-hofac, /f6/p7
PHILLIPS Fortune, d, u, 5, , RAD , Bryndu-hofac, /f6/p8
PHILLIPS Ealen Matilda, d, u, 3, , RAD , Bryndu-hofac, /f6/p8
PHILLIPS Ebenezer, s, u, 2, , RAD , Bryndu-hofac, /f6/p8
PHILLIPS Benjamin, s, u, 7m, , RAD , Bryndu-hofac, /f6/p8