These first five photos appear to have been taken at the same sitting. The chair, the backdrop and Lucia's dress are the same.  The man is no doubt Frank Uffner and the normal-sized girl, his daughter Carrie.
With her mom Tomasa, looking prosperous.  This is the second clearest image of Lucia's face that I've ever seen.
Probably taken upon her arrival to the U.S. Note, her dress is simple and her hair is not made up as in later years
Lucia's arms were 8" long and her waist 14"
"There is now (1876) on exhibition in New York a Mexican dwarf, Lucia Zarate, who, though twelve years of age and active in body, is smaller than are many infants at the time of their birth.  The following measurements were taken by a committee:  Height with shoes on, 21½ inches; length of leg from hip, 10½ inches; around head, 13 inches, circumference of calf of leg, 4 inches, one inch more than a man's thumb; length of shoe, 3 inches, width of shoe, 1½ inch."
             TINY ZARATE.

Senorita Lucia Zarate is just twenty inches in height; is twelve years old, and weighs exactly five pounds.  She is holding levees daily at Tony Pastor's theatre, on Broadway, opposite the Metropolitan Hotel. She is smaller than the smallest lady I every saw, is perfectly formed, and lively as a cricket. Her voice sounds like a crying doll as she talked no end of Spanish, with lightning-like rapidity. Being one of a circle waiting for the senorita, who was out at dinner, my attention had for a moment been occupied by chatting with my neighbour, when "There she is !" caused me to turn quickly to behold what looked like a doll wound up and moving about.  " Is it alive ?" came involuntarily from my lips. TheLilliputs may have existed,  I said, as the little creature put out her perfect hand, with a ring on one finger, to grasp the end of my sun umbrella.  She had no hesitation in showing her preference for men, going about to greet them in the circle.  She was not asked to perform in any way for her astonished visitors, but acted simply as a child would, playing with a wagon, turning its wheels, drawing it about and sitting in it to be pulled across the room. Tom Thumb is a giant beside Miss Zarate. She showed considerable intelligence. "And as we looked the wonder grew" that she could by a possibility know so much. Her dark brown hair is short and curly, her complexion dark; her features are dark and very homely; her eyes, while dark and bright, have not a pleasant expression. A lady gave her a fan. With genuine Spanish coquetry she turned the fan up and down beside her face, and peeped from behind it as only a Spanish girl can. The Zarate is from Mexico. Her parents are common working people residing near the city of Mexico. She was small at birth, and has never grown since, but is perfectly healthy and well developed.  I could only realize her smallness by seeing a young girl pick her up from the floor and hold her for a few moments; then she seemed indeed a living and only a tolerably-sized. doll.— New York Letter, 1877