Zach McClendon, Jr. of Monticello, Ark. will celebrate being in the boat building business for 50 consecutive years this September. McClendon, along with his father, Zach McClendon, Sr. and another local businessman, Norris Judkins started MonArk Boat Company in May of 1958 building small aluminum jon boats using a shear and break press provided by Judkins. The company incorporated the next year, in August of 1959. MonArk Boat Company eventually grew to include a large recreational…