Here are a few of the most common abbreviations found on census records: ad - adopted ap - apprentice a - aunt bar - bartender bo - boarder b - brother bl or bil - brother in law bu - butler com - companion cil - cousin in law dl or dil - daughter in law dla - day laborer dw - dish washer dom - domestic fl or fil - father in law gcl - grand child gd - grand daughter gs - grand son h.si - half sister hk - housekeeper l - lodger ml or mil - mother in law sil or sl - son in law scl - step child sd - step daughter ss - step son u - uncle w - wife Now, go have some fun with the census! Barb