Hi
Freebmd shows only 2 Leonard Malcolm births in the Lancashire area - 1891 in Chorlton and 1902 in Prestwich - assuming he was born in Lancs
There is an 1898 birth in Stockton (Durham) and a 1903 in Bramley (Yorkshire)
Taking the Lancashire births first - the 1891 Leonard was born Ardwick and living with widowed mother Mary and siblings Fred & Beatrice in 1901 but 1891 census shows father as Frederick W b 1861 Manchester - I think this Leonard died in Blackburn in 1962
Using only the free 1911 index - the 1902 Leonard appears to have parents George and Martha - see below for how to use the index. I think this Leonard died in Liverpool in 1965
USING THE FREE 1911 INDEX TO DETERMINE THE CORRECT HOUSEHOLD
http://www.1911census.co.uk/search/tnaform.aspx
Once you find a possible match - make a note of the county and district in which the person was living
Return to the index and in PERSONAL DETAILS - just put the surname of the family - nothing else
In LOCATION - Select the county and below it - type in the district
In OTHER MEMBERS OF THE HOUSEHOLD - show the full name of the person you have found on the index
Click SEARCHYou will have to buy credits to view the full entry - the above instructions will only help to possibly show others of the same name in the same household