I have the following resources at home, and would be happy to look up information for you.

• 1881 Census, County: Lanarkshire:
  IZAT/IZATT/IZET/IZZETT/IZZET

• 1992 LDS IGI Records:
  Lanarkshire, Scotland: IZAT, ISAT, IZATT, IZETT, IZZETT, IZET, IZRAT, IZZARD, IZZITT, IZZEAT
  Fifeshire, Scotland: IZAT, ISAT, ISIT, IZATT, IZETT, IZZETT, IZET, OZATT, OZAT, OSET, OSIT, OSETT, EIZAT, EZEET, EZAT, EZZETT, OZAT.