Very cute bonnet in sizes 1/3/6/12 and 18 months

1 skein of Quince & Co Chickadee (50g/166 m)
or 55/75/85/110/125 metres of sportweight yarn
3.5mm (US 4) needles (straight or long circular)
1 x 10mm button
Gauge/tension in Elm Grain Stitch: 25 sts x 34 rows = 10 x 10 cm