In 2014, the Jewish Telegraphic Agency included Highland Park in an article on communities across the country that were melding Jewish pride into their ceremonies for July 4, which that year fell on Friday, just before Shabbat. Locals were used to seeing a 1953 pickup truck drive through their suburb and others along Chicago’s North Shore blaring a mashup of the song “Yankee Doodle Boy” with a niggun, or wordless melody, written by the noted Orthodox singer-songwriter Shlomo Carlebach. The director of a local synagogue said he passed out both American and Israeli flags along the North Shore parade route....