Hi
Not sure how helpful this is...
There are still some Macro/Macroe/Macrow/Macrowe/Makroe's evident in Suffolk earlier than 1580; some only 10-15 miles SE of Risby:
Examples:
Source, IGI (Extracted record).
28 Aug 1575 Thomas, s. of Thomas Makroe, Great Welnetham, bap.
24 June 1576 Thomas, s. of Thome Macrow & Helline, Glemsford, bap.
IGI (submitted record):
Birth abt. 1550 Thomas Macrowe, Glemsford, no parents given. On the record also is a burial date: 13 Feb 1621 Glemsford. A popular BI has exactly the same info for a death at Glemsford, St. Mary.
A popular Burial Index:
24 Nov 1550 Agnes Macrow, Shimpling St. George, bur.
12 Jun 1552 John Macrow, Shimpling St. George, bur.
There are at least 5 other burials in the Great Welnetham, Lawshall and Shimpling areas prior to 1580, 3 of which are Macro.
Regards
Geoff