Dear Sir,

Could you please simplify the following sentences or phrases and give the meaning of them in easy English for me?
1. County Clerk
2. State File Number; Does it mean the “file of the state” or “tell / specify the file number”?
3. Department of State, Wisconsin-What does it mean when such Department located in the state of Wisconsin and the name signed by someone else, not Collin Powel (Secretary of States)?
I understand that the Department in the United States is a Ministry in my country, but when such a department situated in different state, what should it be meant? And also Department of Death & Vital Statistics, State of Florida What does the Secretary of State, Florida mean, while the Secretary of States means Minister of Foreign Affairs in my country, please?
4. Department of Registrar-Recorder/County Clerk (County of Los Angeles)

Best regards,