Personalized Family Tree Genealogist T-Shirt. Genealogist gift for a family history expert comes on a T-Shirt - Black with beautiful family tree design Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.