Quest for family

I am trying to find information regarding my grandmother’s family who lived in Yorkshire, and wonder whether any of your readers can help. My grandmother’s name was Lily Gilbert, born 1906. Her birth was registered in Knaresborough. Her parents were Ernest (sometimes called himself Harry) and Lizzie Gilbert (nee Fitzsimons). My grandmother had a brother called Ernest (born 1898 in York), a brother called Harry (born 1905 in York) a sister called Laura (born 1911 in Dublin, Ireland) and a sister called Emily (born 1913 in Dublin, Ireland). The family are listed on the 1911 Irish Census, but I believe they returned to Yorkshire in about 1919. My grandmother, Lily, married Reginald Sargent at York Register Office in 1927 and then moved to Nuneaton in Warwickshire. I have been led to believe that Harry, Lily’s brother, moved to Camberley in Surrey in the 1930s. As far as I know Emily remained in York or the surrounding area. I would love to hear from anybody that may be related or have information on the family. I think my grandmother lost touch with her brothers and sisters, so I have no clues on how to track down any living relatives.