The only Irene Bobby I can see in 1901 was bn 1885 Liverpool, daughter of James and Flora
Someone has suggested to Ancestry that it should read 1889, but looking at the image, although generally the image is not particularly clear, her age is clearly written as 16
As you are wanting lots of census look ups, it would be worth you going go your local library, as libraries have ancestry access. Just a thought for you to consider. Then you can browse censuses to our hearts content!