Shrewsbury First Aid Squad 115 Haddon Ave, Shrewsbury, NJ07702 This office is the headquarters for the First Aid Squad of Shrewsbury. It offers volunteers who are on-call for…More emergency responses. The headquarters also offers free CPR classes to the residents of Shrewsbury from time to time. It is located in the corner of Laurel Street and Haddon Avenue. If you are interested in becoming a member, please visit its Web site for applications and for further information on the process.