I don't know the Ottaways Ray just giving you info. from the genealogy records.
Further back with your Ancestry.
Herbert , your grandfather was born in Bethnal green in 1879
parents Jesse Ottaway b 1846 Norfolk, a Boot maker, and Hannah nee Arnott b 1847 Bethnal green
Herbert had older siblings Robert, Jesse,Henry ,Hannah, John,Arthur and Alfred
and younger ones Walter, William,Benjamin and Rhoda.
Jesse Ottaway b 1846 norfolk
parents Robert Ottaway b 1816 Norfolk , Mill waggoner and Rhoda nee Burton b 1822 Norfolk
Robert Ottaway b 1816 norfolk
parents Robert Ottaway b 1786 Norfolk and Bathsheba nee Goward b 1786 norfolk
Hope this is of interest.