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.
Marijuana does not stay in saliva for very long. Most of the rules that apply to marijuanaâs detection time in urine and hair do not apply to marijuana in saliva. It can be detected by a saliva drug screen about an hour after intake. The accuracy of a saliva drug test (97%-98%) will decrease rapidly about 12 hours after the marijuana was consumed.