Here is the 1851 Census on each of these families

1851 Lonan
, 04-16, 037, MYLREA, Thomas, Ballakilley, Head, Married, 46, Prop & Farmer 30 Acs, Onchan
, 04-16, 037, MYLREA, Ann, Ballakilley, Wife, Married, 44, , Lonan
, 04-16, 037, MYLREA, Ann, Ballakilley, Daughter, , 17, , Lonan
, 04-16, 037, MYLREA, Elizabeth, Ballakilley, Daughter, , 15, , Lonan
, 04-17, 037, MYLREA, Isabella, Ballakilley, Daughter, , 13, , Lonan
, 04-17, 037, MYLREA, Eleanor, Ballakilley, Daughter, , 11, , Lonan
, 04-17, 037, MYLREA, Thomas, Ballakilley, Son, , 8, , Lonan
, 04-17, 037, MYLREA, William, Ballakilley, Son, , 5, , Lonan
, 04-17, 037, MYLREA, Jane, Ballakilley, Daughter, , 10, , Lonan
, 04-17, 037, MYLREA, Margaret, Ballakilley, Daughter, , 1-1/2, , Lonan
Don't think they were in Lonan in 1881 but don't know for sure.

1851 Lonan
02-34, 083, MYLREA, William, Laxey Glen House, Head, Married, 39, Landed Prop, Lonan
, 02-34, 083, MYLREA, Jane, Laxey Glen House, Wife, Married, 37, , Lonan
, 02-34, 083, MYLREA, Ann, Laxey Glen House, Daughter, , 12, Scholar, Lonan
, 02-34, 083, MYLREA, Thomas, Laxey Glen House, Son, , 10, Scholar, Lonan
, 02-34, 083, MYLREA, Jane, Laxey Glen House, Daughter, , 8, Scholar, Lonan
, 02-34, 083, MYLREA, William, Laxey Glen House, Son, , 6, , Lonan
, 02-34, 083, MYLREA, Margaret, Laxey Glen House, Daughter, , 3, , Lonan
, 02-34, 083, MYLREA, Isabella, Laxey Glen House, Daughter, , 10/12, , Lonan

I do know that Wm died in 1883 and has a will MYLREA, William 1883 Lonan A 89 0106496
Mo Jane died in 1879 don't see a will for her