Here is the info from the link above that talks about cross reaction between Macadamia Nuts and Hazel Nuts, etc.
Potential cross-reactivity
Macadamia nut belongs to the Proteaceae family, which are classified separately from most other tree nuts and from Peanuts.
Partial cross-reactivity has been reported between Hazel nut and Macadamia nut (4). In a study of Almond, antibodies developed to Almond were shown to be specific for Almond; however, some cross-reactivity was observed with extracts of some tree nuts and of Sesame seeds. Sodium dodecylsulfate-polyacrylamide gel electrophoresis and Western immunoblotting indicated that anti-Almond antibodies recognised proteins extracted from Black walnuts, Brazil nuts, Cashews, Hazel nuts, Macadamia nuts, Pistachios, and Sesame seeds, in addition to those from Almond (6).
"http://www.phadia.com/nl/Allergenen/ImmunoCAP-Allergens/Food-of-Plant-Origin/Seeds--Nuts/Macadamia-nut-/
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I found this site. Scroll down and you'll find at least a partial answer to your question. At least you'll have an idea of where to start.