Are Abington School District v. Schempp and Edwards v. South Carolina both Supreme Court cases?
yes
Title: Ellery Schempp
Passage: Ellery Schempp (born Ellory Schempp, August 5, 1940) is a physicist and is known for being the primary student involved in the landmark 1963 United States Supreme Court decision of "Abington School District v. Schempp" which declared that required public school sanctioned Bible readings were unconstitutional.
Title: Abington School District v. Schempp
Passage: Abington School District v. Schempp, 374 U.S. 203 (1963) , was a United States Supreme Court case in which the Court decided 8–1 in favor of the respondent, Edward Schempp, and declared school-sponsored Bible reading in public schools in the United States to be unconstitutional.  The Chief Justice of the Supreme Court during this case was Earl Warren.
Title: Edwards v. South Carolina
Passage: Edwards v. South Carolina, 372 U.S. 229 (1963) , was a case in which the Supreme Court of the United States held that the First and Fourteenth Amendments to the U.S. Constitution forbade state government officials to force a crowd to disperse when they are otherwise legally marching in front of a state house.
Edwards v. South Carolina Abington School District v. Schempp