Morgan's Birthday is June 21(Summer Solstice, brightest day of the year.) I'm sure he smells of the cheapest premium brand of after shave available on Sunstrider, I imagine some sort of sweet and smokey combination, like a vanilla / whiskey mix. His blood type is AB based on the associated personality traits as I imagine Morgan is someone who thinks in complex ways yet sometimes fails to articulate them to others. He's also quite vengeful and holds a grudge.
His flower is the Larkspur (The myth of Hyacinthus, whom was killed by Apollo, the sun god. Apollo made a flower spring up from the mans blood, this flower was most likely a Larkspur or an Iris, as opposed to the flower we today name after Hyacinthus.) Morgan certainly bathes every single day, sometimes more than once. 
When it comes to eating, he's not a big eater. Preferring to only gorge himself during particular times of celebration where he most enjoys barbecued meat, ribs or chicken, and a strong cup of coffee. He hates candy. Morgan likes reading in his spare time and the manor has quite the library. His favorite genre of books are comedic tragedies. Most of his free time is spent at the bar with his mates.

Morgan likes spring season the most and would probably only enjoy an all season island in the Grandline as he believes that nothing matters without sacrifice. Spring is only beautiful because it means the end of winter and the birth of summer.