The lives of three young men who were inspired by post-9/11 patriotism to serve their country — and lost their lives in Iraq — will be celebrated Saturday on the eve of Veterans Day at the site of the former South Weymouth Naval Air Station.  

Those to be remembered are Marine Sergeant Andrew K. Farrar Jr. of Weymouth, who died on his 31st birthday on Jan. 28, 2005; Marine Lance Corporal Walter K. O’Haire of Rockland, who was killed in action May 9, 2007, six days short of his 21st birthday; and 21-year-old Army Specialist Matthew M. Pollini, also of Rockland, who was killed in action on Jan. 22, 2009. Each will have an engraved stone affixed in a small garden, part of a series of individual pocket parks spaced along the greenway of SouthField, a new 1,400-acre residential community rising on the grounds of the former military installation.