Welcome to DHC, for one. Hey bud, your heart's in the right place, and to me that's the important thing. I feel very fortunate to have had a grandfather to introduce me to hunting, although he passed away when I was but 13. Biggest thing I bagged back then was a nice tom turkey on Thanksgiving Day. Remember puking my guts out when he gutted the thing when we got back to the ranch house and the ladies were busy preparing the real turkey for the oven. I think mine went into the freezer for eating later.
Didn't start deer hunting until after retiring from the Army, many years later. Fortunately, I retired in rural Texas on 15 acres of land where the deer are plentiful enough. Took a few seasons to figure out that I lived on a major deer crossroads and the trails are well traveled.
Start out by getting to know some land owners willing to let you hunt, then scout the area for deer trails, scrapes, bedding down spots. Set out deer cams at possible spots to catch activity. I don't know what the rules/regs are for hunting in KS, so I can't help much in that area. There are other guys on this forum that live in your area so I hope one of them can help you out.
Take your kids to the range and get them comfortable behind their rifles. It's a great for you to pass on the safety and handling aspects you learned in the military. I do the same thing when I take my kids out behind the house to practice and/or zero in their rifles. With me it's ALWAYS -- SAFETY FIRST!
Again, welcome to DHC. Good luck and good hunting!!