Well, This is they in 1871:
George E Sheppard 10 Woolwich, Kent, England Son Plumstead London
Harriet Sheppard 47 Woolwich, Kent, England Wife Plumstead London
Harriet Sheppard 14 Woolwich, Kent, England Daughter Plumstead London
William Sheppard 45 Ireland Head Plumstead London
William E Sheppard 8 Woolwich, Kent, England Son Plumstead London
Shep* plus Woolwich in 1891 Gives:
Shephard, Alfred 37 Woolwich, Kent Head Hackney London
Shephard, William 57 Woolwich, Kent Head Bridgwater Somerset
Shepheard, Henry 36 Woolwich, Kent Prisoner Wandsworth London
Shepherd, Annie 40 Woolwich, Kent Lodger St Mary Hampshire
Shepherd, Annie 41 Woolwich, Kent Daughter Shoreditch London
Shepherd, Beatrice M 4 Woolwich, Kent Daughter Plumstead London
Shepherd, Christopher J 7.12 Woolwich, Kent Son Woolwich London
Shepherd, Edwin C H 26 Woolwich, Kent Daughter Tottenham Middlesex
Shepherd, Elizabeth 30 Woolwich, Kent Wife Woolwich London
Shepherd, Elizabeth R 2 Woolwich, Kent Grandaughter Hedsor Buckinghamshire
Shepherd, George 17 Woolwich, Kent Son Chiselhurst Kent
Shepherd, George 36 Woolwich, Kent Head Plumstead London
Shepherd, George 39 Woolwich, Kent Head Woolwich London
Shepherd, George A 69 Woolwich, Kent Head Tottenham Middlesex
Shepherd, Louixa 38 Woolwich, Kent Daughter Tottenham Middlesex
Shepherd, Margaret 2 Woolwich, Kent Daughter Aldershot Hampshire
Shepherd, Margaret J 41 Woolwich, Kent Daughter Tottenham Middlesex
Shepherd, Mary 3 Woolwich, Kent Daughter Aldershot Hampshire
Shepherd, Richard 17 Woolwich, Kent Cousin Leyton Essex
Shepherd, Robert D W 70 Woolwich, Kent Head Islington London
Shepherd, Robert W 46 Woolwich, Kent Head Walthamstow Essex
Shepherd, Rose S 26 Woolwich, Kent Wife Walthamstow Essex
Shepherd, Selina J 45 Woolwich, Kent Daughter Tottenham Middlesex
Shepherd, William 72 Woolwich, Kent Head Portsea Hampshire
Shepherd, William 7 Woolwich, Kent Son Woolwich London
Sheppard, Albert 34 Woolwich, Kent Head Kensington London
Sheppard, Alfred 8 Woolwich, Kent Son Greenwich London
Sheppard, Ann Smith 78 Woolwich, Kent Mother-in-law Newington St Mary London
Sheppard, Bessie 9 Woolwich, Kent Daughter Woolwich London
Sheppard, Charles 12 Woolwich, Kent Son Clerkenwell London
Sheppard, Charles J 35 Woolwich, Kent Head Chatham Kent
Sheppard, Clara I 7.12 Woolwich, Kent Dau Of Foregoing Woolwich London
Sheppard, Eliza 25 Woolwich, Kent Wife Charlton London
Sheppard, Ellen J 26 Woolwich, Kent Wife Charlton London
Sheppard, Evelina 23 Woolwich, Kent Head East Dean Gloucestershire
Sheppard, Frances 15 Woolwich, Kent Daughter Greenwich London
Sheppard, Grace 14 Woolwich, Kent Daughter Woolwich London
Sheppard, Harry 24 Woolwich, Kent Lodger Woolwich London
Sheppard, James 10 Woolwich, Kent Son Woolwich London
Sheppard, John 60 Woolwich, Kent Head St Martin Wiltshire
Sheppard, Margaret 40 Woolwich, Kent Wife Chelsea London
Sheppard, Robert 53 Woolwich, Kent Head Woolwich London
Sheppard, Samuel 5 Woolwich, Kent Son Greenwich London
Shepperd, Agnes 53 Woolwich, Kent Wife Birmingham Warwickshire
Shepperd, Thomas 37 Woolwich, Kent Boarder Plumstead London
Shepplerd, Frank 22 Woolwich, Kent Son Woolwich London
So iT look like the parents are not around. (or mis-indexed)