1891 census RG12 4703 folio 29
4 Havelet St Peter Port Guernsey
Jamouneau, Frederick 64 Loudon, Head Married grocer's clerk
Jamouneau, Sarah 56 St. Peter Port, Guernsey, Channel Islands Wife Married Musician
(perhaps mistakenly placed next to Sarah instead of Arthur)Jamouneau, Arthur 25 St. Peter Port, Guernsey, Channel Islands Son
Jamouneau, Frederick 16 St. Peter Port, Guernsey, Channel Islands Son Draper's assistant
1881 census RG11 5626 folio 14
10 Victoria He High St, St Peter Port, Guernsey, Channel Islands
Frederick Jamouneau 53 England Head Married Draper
Sarah Jamouneau 45 St Peter Port, Guernsey, Channel Islands Wife Married
Arthur Jamouneau 15 St Peter Port, Guernsey, Channel Islands Son Assist.
Frederick Jamouneau 6 St Peter Port, Guernsey, Channel Islands Son
1871 census RG10 5767 folio 52
43 Mount Durnad?St Peter Port Guernsey
Fred Jamouneau 45 St Lukes, London, England Head Married Draper
Sarah Jamouneau 37 St P Port, Guernsey, Channel Islands Wife Married
Arthur J Jamouneau 5 St P Port, Guernsey, Channel Islands Son
1861 census RG9 4383 folio 59
Bondage Street St Peter Port Guernsey
Frederick Jamoneau 32 London, England Boarder Linen Draper's assistant
1851 census HO107 2530 folio 398
27 Victoria Road St Peter Port Guernsey
William Jamoneau 51 St Anne's, Alderney, Channel Islands Head Married Book binder + stat employing 3 men
Susan Jamoneau 55 St Peter Port, Guernsey, Channel Islands Wife Married
William D Jamoneau 24 England Son Book binder journeyman
Frederick Jamoneau 23 England Son Draper's assistant
Theophilus Jamoneau 20 England Son Book binder journeyman
Edwin Jamoneau 15 St Peter Port, Guernsey, Channel Islands Son Draper's (ap)
Alfred Jamoneau 13 St Peter Port, Guernsey, Channel Islands Son Book binder's (ap)
Also try this website
http://history.foote-family.com/jamoun1.htmRegards
Valda