Misc: who was known as "calamity jane" and said to have married 12 times (complete name)?

Questions

In 1972 President ---------- visits China.?

In 1985 Clarence---------- , the voice of Donald Duck, died.?

In 1804 First self-propelled ---------- on rails demonstrated, in Wales.?

In 1858 First electric ---------- is installed in Boston, Mass.?

In 1878 First ---------- is issued, in New Haven, Conn.?