I wrote a post a while back where I located all my ancestors who were alive at the time in the 1901 census. The only thing was I couldn't find my great-grandmother Albertina Zimber. I found her brothers, step-mother, uncles and an aunt but she was nowhere to be found.
Well, I finally tracked her down to Dungarvan, Co Waterford where she was living over a shop where she worked as a Drapers Assistant. The thing was her surname was significantly misspelt (I submitted a correction and it has now been changed) and her first name was given as Bertha so no wonder she proved elusive.
It might prove useful to note how I did locate her. I used the advanced search options and searched using her age and religion (Methodist) and tried a number of variations on her first name which finally came up trumps.