Lehigh Portland Cement at Indiantown Gap

I found this 1941 magazine ad on eBay. It's interesting to me because my grandfather had his training at Fort Indiantown Gap, and my dad worked for Lehigh Portland Cement. I bought the ad and gave it to my dad as a gift. I think it's neat that in 1943 my grandfather walked on concrete that was made by his future son-in-law's cement company.