I don't know if this is a relevant child of your Benjamin & Caroline's or not
From the marriage register, St James the Great Bethnal Green
29 Sept 1873
George Eglington,full age, bachelor, Baker, of Bethnal Green, father Samuel Eglington, Carman
Mary Ann Groutage, full age, spinster, of Bethnal green, father Benjamin Groutage Deceased
Edited: Beng Groutage of Bethnal Green, buried Shoreditch 1832, looks like another family group