Click on a circle in the chart to view Sham immigration records. You can find out when most of the Sham families immigrated to the United States. You can focus your search to immigration records dating from that era. Immigration records can tell you an ancestor's name, ship name, port of departure, port of arrival and destination.
Probably, however...: As my colleague dr. Pappas mentions, marijuana is almost always tested in urine rather than blood, so someone would almost certainly pass a blood test but is more likely to face a urine test.
How Long Does Marijuana Stay In Your Blood. How long the THC stays in the userâs blood depends on the frequency of marijuana use. Persons who smoked marijuana just once in their lives would have traces of the metabolites cleaned out within three to five days.