Children

Infant Gown by Sunset Crochet (Etsy.com)

In the 1870s, infants continued to be dressed in white or ivory flowing gowns, a style that continued into the early twentieth century. Gender dress changes often did not occur until a child was five or six; however, in the later decades gender dress came much sooner.

Girls

Girls’ ages could be depicted often based on the length of their skirt. As the girls got older, they wore longer skirts. A four year old would wear her skirt at knee length; ten to twelve at mid-calf; and by sixteen, the girls dress would be ankle length.

Girl's Fashion, 1901

In the 1880s, young girls wore dresses with round collars and sashes. Fashionable dresses had dropped waists. Pinafores were worn for work and play. Just like ladies, all upper-class Victorian girls wore gloves when going out. A hat or bonnet was worn as well, along with a parasol. At the turn of the century, girls wore dresses of knee length, with trimmings at the hem such as lace and embroidery. Normally, black shoes and woolen stockings went with the dress.

Their hair was generally worn long and curly with decorations of ribbon.  For play, bloomers and woolen jerseys were acceptable.

Baby dress and bloomers, By Piper Kids Boutique (Etsy.com)

Bonnet, By Piper Kids Boutique (Etsy.Com)

Steampunk Girl's Dress, By Piper Kids Boutique (Etsy.com)

Boys

During this period, boys often dressed similar to adult males, as they too wore blazers and tweed jackets. Older boys wore knee-length breeches and jackets with round-collar. Fashionable clothing for boys included sailor suits, consisting of a shirt with a sailor collar and trousers or knickerbockers. For automobiling, boys wore a duster with knickerbockers, a flat cap, and goggles.

Victorian Boy's Suit, Elena Collections, USA

Boy sailor suit by Custom Sewing by Elaine (Etsy.com)

Source: Wikipedia Fashion.