You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
John_Kerry

Context:
John Forbes Kerry was born on December 11, 1943 in Aurora, Colorado, at Fitzsimons Army Hospital. He was the second oldest of four children born to Richard John Kerry, a Foreign Service officer and lawyer, and Rosemary Isabel Forbes, a nurse and social activist. His father was raised Catholic (John's paternal grandparents were Austro-Hungarian Jewish immigrants who converted to Catholicism) and his mother was Episcopalian. He was raised with an elder sister named Margaret (born 1941), a younger sister named Diana (born 1947) and a younger brother named Cameron (born 1950). The children were raised in their father's faith; John Kerry served as an altar boy.

Question:
What is Kerry's older sibling's name?

Margaret