I have a birth certificate from 1848: Dist. PORTSEA ISLAND UNION; Sub.Dist. Landport and Southsea. Mother is down as living in Bow Street (no number)
My problem is that the District is PORTSEA ISLAND and the word UNION seems associated with the 'workhouse, infirmary, asylum" complex. Is it likely that and the registrar is disguising the fact that the birth took place in the workhouse? The father is a naval seaman.