You might find this thread of interest:
http://boards.ancestry.com/surnames.lajeunesse/255/mb.ashxGiven and surname mangling, variations, as well as Anglicization are standard MO in genealogy, it is one of the basics every researcher should understand.
Including the (birth/death) dates and locations in your post, increases the chances of connection with other researchers. Same names individuals existed and exist. Providing the time-period and locations they were born, lived and died, helps to sort out who is who.