Kaisa Karhula

I am looking for any information on Kaisa Karhula. She is my great grandmother. All we know is that she was born in Norway and her father's name is Peter Karhula and her mother was Kaisa Kustala. Kaisa Karhula came to the United States in 1891. She was born in 1872. Kaisa married Gustaf Pirkola in Michigan, USA in 1892 and she died in November of 1902. I am looking for any information on this family; birth certificate, baptismal records, any siblings etc... Thank You, Julie (Pirkola) Harris