Seems their full names were Thomas Robin Ogier and Cecile De Jersey Mauger
in 1881 she was lodging with a family called Jones at Hildebrant Roquettes, St Peter Port, Guernsey. It looks like it was a school (RG11 5625 99 13)
1871 @ Bernoderie (?), St Mary De Castro, Guernsey (RG10 5768 73 18)
John Mauger, Head, 33, Farmer, St Martin Guernsey
Eliza Mauger, Wife, 34, St Andrews Guernsey
Eliza I Mauger, Dau, 11, St Mary De Castro Guernsey
Mary L Mauger, Dau, 10, St Mary De Castro Guernsey
Emilia J Mauger, Dau, 8, St Mary De Castro Guernsey
Cecelia Mauger, Dau, 3, St Mary De Castro Guernsey
Priscilla Mauger, Dau, 1, St Mary De Castro Guernsey
1861 @ same address as 1871 (RG9 4377 4 3)
John (*) Mauger, Head, 23, Farmer of 11 Acres, St Martin
Eliza Mauger, Wife, 23, St Andrews
Eliza I Mauger, Dau, 1, born Catel
Mary L Mauger, Dau, 2m, born Catel
Susanne De Jersey, 67, Independant, born Catel
* as Jean Mauger
Skipped 1851 (as can't find it) but in 1841 this looks like John/Jean at Vaudes, Catel
Nicolas Mauger, 40, Ag. Labourer, born in Channel Islands
Elizabeth Mauger, 40, born in Channel Islands
Nicolas Mauger, 9, born in Channel Islands
Elizabeth Mauger, 7, born in Channel Islands
Jean Mauger, 3, born in Channel Islands
If there was a french connection with the Mauger's it looks like it could be quite a way back